Intel r dual band wireless-ac 3160 là gì năm 2024
Chip Wireless-AC 7260 thuộc Intel Wireless Product 7200 series, gồm có 3 sản phẩm là: Wireless-N 7260 with Bluetooth - chuẩn WiFi N, hỗ trợ một băng tần 2,4GHz và tích hợp Bluetooth 4.0; Dual Band Wireless-N 7260 with Bluetooth - chuẩn WiFi N hỗ trợ 2 băng tần 2,4GHz/5GHz và có Bluetooth 4.0; cuối cùng là Wireless-AC 7260 hỗ trợ kết nối WiFi ac trên băng tần 5GHz và b/g/n trên băng tần 2,4GHz/5GHz. Show
Chứng nhận chip Wireless-AC 7260 của WiFi Alliance Con chip Wireless-AC 7260 này chỉ mới được Liên minh kết nối không dây (WiFi Alliance) chứng nhận đạt chuẩn WiFi ac vào ngày 11/6 vừa qua, và được Intel tung ra thị trường ngày 26/6. Theo tìm hiểu của mình thì hầu hết các bo mạch chủ hỗ trợ Haswell dành cho máy tính để bàn trên thị trường hiện nay mà có tích hợp WiFi ac thì đều sử dụng chip WLAN của Broadcom, chứ không có model Wireless-AC 7260 của Intel. Đó cũng là lí do chúng ta thấy các hãng không quảng cáo chức năng stream không dây WiDi 1.4 trên các sản phẩm của mình. Hi vọng các laptop sử dụng chip Haswell sắp ra mắt thị trường trong thời gian tới sẽ được trang bị con chip WLAN với WiFi ac đạt băng thông 867Mbps này, tức gần gấp đôi băng thông tối đa 450Mbps mà WiFi N đang có. Lúc đó chúng ta sẽ có những bài thử nghiệm về băng thông của WiFi ac với những phép thử như streaming, chép file với ổ cứng mạng... Cập nhật: Mình có mượn được 1 cái card WiFi ac cho laptop của Broadcom, sẽ có bài thử nghiệm tốc độ. IEEE 802.11ac-2013 or 802.11ac is a wireless networking standard in the IEEE 802.11 set of protocols (which is part of the Wi-Fi networking family), providing high-throughput wireless local area networks (WLANs) on the . The standard has been retroactively labelled as Wi-Fi 5 by Wi-Fi Alliance. The specification has multi-station throughput of at least 1.1 gigabit per second (1.1 Gbit/s) and single-link throughput of at least 500 megabits per second (0.5 Gbit/s). This is accomplished by extending the air-interface concepts embraced by 802.11n: wider RF bandwidth (up to 160 MHz), more MIMO spatial streams (up to eight), downlink multi-user MIMO (up to four clients), and high-density modulation (up to ). The Wi-Fi Alliance separated the introduction of ac wireless products into two phases ("waves"), named "Wave 1" and "Wave 2". From mid-2013, the alliance started certifying Wave 1 802.11ac products shipped by manufacturers, based on the IEEE 802.11ac Draft 3.0 (the IEEE standard was not finalized until later that year). Subsequently in 2016, Wi-Fi Alliance introduced the Wave 2 certification, which includes additional features like MU-MIMO (down-link only), 160 MHz channel width support, support for more 5 GHz channels, and four spatial streams (with four antennas; compared to three in Wave 1 and 802.11n, and eight in IEEE's 802.11ax specification). It meant Wave 2 products would have higher bandwidth and capacity than Wave 1 products. New technologies[edit]New technologies introduced with 802.11ac include the following:
Features[edit]Mandatory[edit]
Optional[edit]
New scenarios and configurations[edit]The single-link and multi-station enhancements supported by 802.11ac enable several new WLAN usage scenarios, such as simultaneous streaming of HD video to multiple clients throughout the home, rapid synchronization and backup of large data files, wireless display, large campus/auditorium deployments, and manufacturing floor automation. To fully utilize their WLAN capacities, 802.11ac access points and routers have sufficient throughput to require the inclusion of a USB 3.0 interface to provide various services such as video streaming, FTP servers, and personal cloud services. With storage locally attached through USB 2.0, filling the bandwidth made available by 802.11ac was not easily accomplished. Example configurations[edit]All rates assume 256-QAM, rate 5/6: Scenario Typical client form factor PHY link rate Aggregate capacity (speed) One-antenna AP, one-antenna STA, 80 MHz Handheld 433 Mbit/s 433 Mbit/s Two-antenna AP, two-antenna STA, 80 MHz Tablet, laptop 867 Mbit/s 867 Mbit/s One-antenna AP, one-antenna STA, 160 MHz Handheld 867 Mbit/s 867 Mbit/s Three-antenna AP, three-antenna STA, 80 MHz Laptop, PC 1.30 Gbit/s 1.30 Gbit/s Two-antenna AP, two-antenna STA, 160 MHz Tablet, laptop 1.73 Gbit/s 1.73 Gbit/s Four-antenna AP, four one-antenna STAs, 160 MHz (MU-MIMO) Handheld 867 Mbit/s to each STA 3.39 Gbit/s Eight-antenna AP, 160 MHz (MU-MIMO)
Wave 1 vs. Wave 2[edit]Wave 2, referring to products introduced in 2016, offers a higher throughput than legacy Wave 1 products, those introduced starting in 2013. The maximum physical layer theoretical rate for Wave 1 is 1.3 Gbit/s, while Wave 2 can reach 2.34 Gbit/s. Wave 2 can therefore achieve 1 Gbit/s even if the real world throughput turns out to be only 50% of the theoretical rate. Wave 2 also supports a higher number of connected devices. Data rates and speed[edit]Modulation and coding schemes MCS index Spatial Streams Modulation type Coding rate Data rate (Mbit/s) 20 MHz channels 40 MHz channels 80 MHz channels 160 MHz channels 800 ns GI 400 ns GI 800 ns GI 400 ns GI 800 ns GI 400 ns GI 800 ns GI 400 ns GI 0 1 BPSK 1/2 6.5 7.2 13.5 15 29.3 32.5 58.5 65 1 1 QPSK 1/2 13 14.4 27 30 58.5 65 117 130 2 1 QPSK 3/4 19.5 21.7 40.5 45 87.8 97.5 175.5 195 3 1 16-QAM 1/2 26 28.9 54 60 117 130 234 260 4 1 16-QAM 3/4 39 43.3 81 90 175.5 195 351 390 5 1 64-QAM 2/3 52 57.8 108 120 234 260 468 520 6 1 64-QAM 3/4 58.5 65 121.5 135 263.3 292.5 526.5 585 7 1 64-QAM 5/6 65 72.2 135 150 292.5 325 585 650 8 1 256-QAM 3/4 78 86.7 162 180 351 390 702 780 9 1 256-QAM 5/6 — — 180 200 390 433.3 780 866.7 0 2 BPSK 1/2 13 14.4 27 30 58.5 65 117 130 1 2 QPSK 1/2 26 28.9 54 60 117 130 234 260 2 2 QPSK 3/4 39 43.3 81 90 175.5 195 351 390 3 2 16-QAM 1/2 52 57.8 108 120 234 260 468 520 4 2 16-QAM 3/4 78 86.7 162 180 351 390 702 780 5 2 64-QAM 2/3 104 115.6 216 240 468 520 936 1040 6 2 64-QAM 3/4 117 130.3 243 270 526.5 585 1053 1170 7 2 64-QAM 5/6 130 144.4 270 300 585 650 1170 1300 8 2 256-QAM 3/4 156 173.3 324 360 702 780 1404 1560 9 2 256-QAM 5/6 — — 360 400 780 866.7 1560 1733.3 0 3 BPSK 1/2 19.5 21.7 40.5 45 87.8 97.5 175.5 195 1 3 QPSK 1/2 39 43.3 81 90 175.5 195 351 390 2 3 QPSK 3/4 58.5 65 121.5 135 263.3 292.5 526.5 585 3 3 16-QAM 1/2 78 86.7 162 180 351 390 702 780 4 3 16-QAM 3/4 117 130 243 270 526.5 585 1053 1170 5 3 64-QAM 2/3 156 173.3 324 360 702 780 1404 1560 6 3 64-QAM 3/4 175.5 195 364.5 405 — — 1579.5 1755 7 3 64-QAM 5/6 195 216.7 405 450 877.5 975 1755 1950 8 3 256-QAM 3/4 234 260 486 540 1053 1170 2106 2340 9 3 256-QAM 5/6 260 288.9 540 600 1170 1300 2340 2600 0 4 BPSK 1/2 26 28.8 54 60 117.2 130 234 260 1 4 QPSK 1/2 52 57.6 108 120 234 260 468 520 2 4 QPSK 3/4 78 86.8 162 180 351.2 390 702 780 3 4 16-QAM 1/2 104 115.6 216 240 468 520 936 1040 4 4 16-QAM 3/4 156 173.2 324 360 702 780 1404 1560 5 4 64-QAM 2/3 208 231.2 432 480 936 1040 1872 2080 6 4 64-QAM 3/4 234 260 486 540 1053.2 1170 2106 2340 7 4 64-QAM 5/6 260 288.8 540 600 1170 1300 2340 2600 8 4 256-QAM 3/4 312 346.8 648 720 1404 1560 2808 3120 9 4 256-QAM 5/6 — — 720 800 1560 1733.3 3120 3466.7 Several companies are currently offering 802.11ac chipsets with higher modulation rates: MCS-10 and MCS-11 (1024-QAM), supported by Quantenna and Broadcom. Although technically not part of 802.11ac, these new MCS indices became official in the 802.11ax standard, ratified in 2021. 160 MHz channels are unavailable in some countries due to regulatory issues that allocated some frequencies for other purposes. Advertised speeds[edit]802.11ac-class device wireless speeds are often advertised as AC followed by a number, that number being the highest link rates in Mbit/s of all the simultaneously-usable radios in the device added up. For example, an AC1900 access point might have 600 Mbit/s capability on its 2.4 GHz radio and 1300 Mbit/s capability on its 5 GHz radio. No single client device could connect and achieve 1900 Mbit/s of throughput, but separate devices each connecting to the 2.4 GHz and 5 GHz radios could achieve combined throughput approaching 1900 Mbit/s. Different possible stream configurations can add up to the same AC number. Type 2.4 GHz band Mbit/s 2.4 GHz band config [all 40 MHz] 5 GHz band Mbit/s 5 GHz band config [all 80 MHz] AC450 - - 433 1 stream @ MCS 9 AC600 150 1 stream @ MCS 7 433 1 stream @ MCS 9 AC750 300 2 streams @ MCS 7 433 1 stream @ MCS 9 AC1000 300 2 streams @ MCS 7 650 2 streams @ MCS 7 AC1200 300 2 streams @ MCS 7 867 2 streams @ MCS 9 AC1300 400 2 streams @ 256-QAM 867 2 streams @ MCS 9 AC1300 - - 1,300 3 streams @ MCS 9 AC1350 450 3 streams @ MCS 7 867 2 streams @ MCS 9 AC1450 450 3 streams @ MCS 7 975 3 streams @ MCS 7 AC1600 300 2 streams @ MCS 7 1,300 3 streams @ MCS 9 AC1700 800 4 streams @ 256-QAM 867 2 streams @ MCS 9 AC1750 450 3 streams @ MCS 7 1,300 3 streams @ MCS 9 AC1900 600 3 streams @ 256-QAM 1,300 3 streams @ MCS 9 AC2100 800 4 streams @ 256-QAM 1,300 3 streams @ MCS 9 AC2200 450 3 streams @ MCS 7 1,733 4 streams @ MCS 9 AC2300 600 4 streams @ MCS 7 1,625 3 streams @ 1024-QAM AC2400 600 4 streams @ MCS 7 1,733 4 streams @ MCS 9 AC2600 800 4 streams @ 256-QAM 1,733 4 streams @ MCS 9 AC2900 750 3 streams @ 1024-QAM 2,167 4 streams @ 1024-QAM AC3000 450 3 streams @ MCS 7 1,300 + 1,300 3 streams @ MCS 9 x 2 AC3150 1000 4 streams @ 1024-QAM 2,167 4 streams @ 1024-QAM AC3200 600 3 streams @ 256-QAM 1,300 + 1,300 3 streams @ MCS 9 x 2 AC5000 600 4 streams @ MCS 7 2,167 + 2,167 4 streams @ 1024-QAM x 2 AC5300 1000 4 streams @ 1024-QAM 2,167 + 2,167 4 streams @ 1024-QAM x 2 Products[edit]Commercial routers and access points[edit]Quantenna released the first 802.11ac chipset for retail Wi-Fi routers and consumer electronics on November 15, 2011. Redpine Signals released the first low power 802.11ac technology for smartphone application processors on December 14, 2011. On January 5, 2012, Broadcom announced its first 802.11ac Wi-Fi chips and partners and on April 27, 2012, Netgear announced the first Broadcom-enabled router. On May 14, 2012, Buffalo Technology released the world’s first 802.11ac products to market, releasing a wireless router and client bridge adapter. On December 6, 2012, Huawei announced commercial availability of the industry's first enterprise-level 802.11ac Access Point. Motorola Solutions is selling 802.11ac access points including the AP 8232. In April 2014, Hewlett-Packard started selling the HP 560 access point in the controller-based WLAN enterprise market segment. Commercial laptops[edit]On June 7, 2012, it was reported that Asus had unveiled its ROG G75VX gaming notebook, which would be the first consumer-oriented notebook to be fully compliant with 802.11ac (albeit in its "draft 2.0" version). Apple began implementing 802.11ac starting with the MacBook Air in June 2013, followed by the MacBook Pro and Mac Pro later that year. As of December 2013, Hewlett-Packard incorporates 802.11ac compliance in laptop computers. Commercial handsets (partial list)[edit]Vendor Model Release Date Chipset Notes HTC One (M7) March 22, 2013 BCM4335 First 802.11ac-enabled handset announced February 19, 2013 Samsung Galaxy S4 April 26, 2013 BCM4335 Samsung Galaxy Note 3 September 25, 2013 BCM4339 Subsequent Devices Include 802.11ac LG LG Nexus 5 October 2013 BCM4339 BCM4339 is the updated version of the BCM4335 Nokia Lumia 1520 November 2013 WCN3680 First 802.11ac-enabled Windows Phone Nokia Lumia Icon February 20, 2014 WCN3680 Lumia 930 is Europe version of the same phone, also with 802.11ac HTC One (M8) March 25, 2014 WCN3680 Samsung Galaxy S5 April 11, 2014 BCM4354 LG G2 September 18, 2013 AWL9581 LG G3 May 23, 2014 BCM4339 Amazon.com Fire Phone July 25, 2014 WCN3680 Samsung Galaxy S5 Prime/SM-G906S June 18, 2014 QCA6174 Samsung Galaxy Alpha September 7, 2014 E702A7 Apple iPhone 6/Plus September 19, 2014 BCM4345 First 802.11ac-enabled iOS devices Motorola Nexus 6 October 16, 2014 BCM4356 Samsung Galaxy Note 4 October 10, 2014 BCM4358 Samsung Galaxy Note 5 August 21, 2015 BCM4359 Commercial tablets[edit]Vendor Model Release Date Chipset Notes Microsoft Surface Pro 3 June 20, 2014 Avastar 88W8897 802.11ac-enabled touchscreen computing device Apple iPad Air 2 October 24, 2014 Broadcom BCM4350 First 802.11ac-enabled iOS tablet device Google Nexus 9 November 3, 2014 Nvidia Tegra K1 2x2 MIMO Chipsets[edit]Vendor Part # Streams LDPC TxBF 256-QAM Applications Broadcom BCM43602 3 routers, laptops Broadcom BCM4360 3 routers, laptops Broadcom BCM43569 2 DTV Broadcom BCM4352 Archived 2015-04-18 at the Wayback Machine 2 tablets Broadcom BCM4350 2 tablets Broadcom BCM4356 2 handsets, tablets Broadcom BCM4354 2 handsets, tablets Broadcom BCM4339 1 handsets Broadcom BCM4335 Archived 2012-07-28 at the Wayback Machine 1 handsets Broadcom BCM4359 2 handsets Broadcom BCM43455 1 handsets Marvell Avastar 88W8897 2 tablets Marvell Avastar 88W8864 3 routers Qualcomm WCN3680 1 handsets Qualcomm 2 tablets Qualcomm QCA9880 3 home routers Qualcomm 3 enterprise routers Qualcomm QCA9892 2 tablets, PtP Links Qualcomm 4 enterprise access points Qualcomm QCA9992 3 enterprise access points MediaTek MT7610 1 ? ? ? PC (PCIe or USB) MediaTek MT7650 1 ? handsets MediaTek MT7612E 2 laptops (PCIe 2.0) MediaTek 2 laptops (USB 3.0) Quantenna QAC2300 4 routers Redpine Signals RS9117 1?handsets Redpine Signals RS9333 3?routers Realtek RTL8811AU 1 ? ? ? adapter (USB 2.0) Realtek RTL8812AU 2 ? ? ? adapter (USB 3.0) Intel AC-3160 1 ? ? ? laptops Intel AC-7260 2 ? ? ? laptopsNotes[edit]
Comparison[edit]
802.11 network standards Frequency range, or type PHY Protocol Release date Frequency Bandwidth Stream data rate Allowable MIMO streams Modulation Approximate range Indoor Outdoor (GHz) (MHz) (Mbit/s) 1–7 GHz DSSS, FHSS 802.11-1997 June 1997 2.4 22 1, 2 — DSSS, FHSS 20 m (66 ft) 100 m (330 ft) HR/DSSS 802.11b September 1999 2.4 22 1, 2, 5.5, 11 — CCK, DSSS 35 m (115 ft) 140 m (460 ft) OFDM 802.11a September 1999 5 5, 10, 20 6, 9, 12, 18, 24, 36, 48, 54 (for 20 MHz bandwidth, divide by 2 and 4 for 10 and 5 MHz) — OFDM 35 m (115 ft) 120 m (390 ft) 802.11j November 2004 4.9, 5.0 ? ? 802.11y November 2008 3.7 ? 5,000 m (16,000 ft) 802.11p July 2010 5.9 200 m 1,000 m (3,300 ft) 802.11bd December 2022 5.9, 60 500 m 1,000 m (3,300 ft) ERP-OFDM 802.11g June 2003 2.4 38 m (125 ft) 140 m (460 ft) HT-OFDM 802.11n (Wi-Fi 4) October 2009 2.4, 5 20 Up to 288.8 4 MIMO-OFDM (64-QAM) 70 m (230 ft) 250 m (820 ft) 40 Up to 600 VHT-OFDM 802.11ac (Wi-Fi 5) December 2013 5 20 Up to 693 8 DL MU-MIMO OFDM (256-QAM) 35 m (115 ft) ? 40 Up to 1600 80 Up to 3467 160 Up to 6933 HE-OFDMA 802.11ax (Wi-Fi 6, Wi-Fi 6E) May 2021 2.4, 5, 6 20 Up to 1147 8 UL/DL MU-MIMO OFDMA (1024-QAM) 30 m (98 ft) 120 m (390 ft) 40 Up to 2294 80 Up to 4804 80+80 Up to 9608 EHT-OFDMA 802.11be (Wi-Fi 7) Dec 2024 () 2.4, 5, 6 80 Up to 11.5 Gbit/s 16 UL/DL MU-MIMO OFDMA (4096-QAM) 30 m (98 ft) 120 m (390 ft) 160 (80+80) Up to 23 Gbit/s 240 (160+80) Up to 35 Gbit/s 320 (160+160) Up to 46.1 Gbit/s UHR 802.11bn (Wi-Fi 8) May 2028 (est.) 2.4, 5, 6, 42, 60, 71 320 Up to 100000 (100 Gbit/s) 16 Multi-link MU-MIMO OFDM (8192-QAM) ? ? WUR 802.11ba October 2021 2.4, 5 4, 20 0.0625, 0.25 (62.5 kbit/s, 250 kbit/s) — OOK (multi-carrier OOK) ? ? mmWave (WiGig) DMG 802.11ad December 2012 60 2160 (2.16 GHz) Up to 8085 (8 Gbit/s) — OFDM, single carrier, low-power single carrier 3.3 m (11 ft) ? 802.11aj April 2018 60 1080 Up to 3754 (3.75 Gbit/s) — single carrier, low-power single carrier ? ? CMMG 802.11aj April 2018 45 540, 1080 Up to 15015 (15 Gbit/s) 4 OFDM, single carrier ? ? EDMG 802.11ay July 2021 60 Up to 8640 (8.64 GHz) Up to 303336 (303 Gbit/s) 8 OFDM, single carrier 10 m (33 ft) 100 m (328 ft) Sub 1 GHz (IoT) TVHT 802.11af February 2014 0.054– 0.79 6, 7, 8 Up to 568.9 4 MIMO-OFDM ? ? S1G 802.11ah May 2017 0.7, 0.8, 0.9 1–16 Up to 8.67 (@2 MHz) 4 ? ? Light (Li-Fi) LC (VLC/OWC) 802.11bb December 2023 (est.) 800–1000 nm 20 Up to 9.6 Gbit/s — O-OFDM ? ? IR (IrDA) 802.11-1997 June 1997 850–900 nm ? 1, 2 — PPM ? ? 802.11 Standard rollups 802.11-2007 (802.11ma) March 2007 2.4, 5 Up to 54 DSSS, OFDM 802.11-2012 (802.11mb) March 2012 2.4, 5 Up to 150 DSSS, OFDM 802.11-2016 (802.11mc) December 2016 2.4, 5, 60 Up to 866.7 or 6757 DSSS, OFDM 802.11-2020 (802.11md) December 2020 2.4, 5, 60 Up to 866.7 or 6757 DSSS, OFDM 802.11me September 2024 () 2.4, 5, 6, 60 Up to 9608 or 303336 DSSS, OFDM
See also[edit]
References[edit]
|