Singapore Wireless Blogged! - Wireless happenings in Singapore

Introduction

Wireless Blogged is a collection of articles from the web


600Mbps Wi Fi data transfers by using concurrent use of 2.4 and 5GHz bands by Atheros

Atheros Communications, Inc., a leading developer of advanced wireless solutions, today announced the launch of its highest performance 802.11n solution to date. The AR5008AP-3NX2 chipset’s concurrent operation in the 2.4 GHz and 5 GHz wireless LAN (WLAN) frequency bands delivers up to 600 megabits-per-second (Mbps) aggregate physical data rates and the flexibility to segregate application content into the channels that provide the best user experience…With up to 27 non-overlapping channels, end users can run numerous WLAN applications simultaneously while avoiding interference which often plagues networks operating solely in the 2.4 GHz frequency band. The combined 2.4 and 5 GHz channel capacity supports uninterrupted, jitter-free transmission of multimedia applications.

“Home networks can maximize bandwidth capacity and avoid interference by segregating applications across the two frequency bands. With only three [non-overlapping] channels, the 2.4 GHz band is subject to high levels of congestion from legacy 802.11b/g products and interference from microwave ovens, cordless phones and Bluetooth devices. As such, the 2.4 GHz band is well-suited for applications less sensitive to bandwidth limitations and interference: Internet data traffic, streaming MP3s and wireless printing. The 5 GHz band with 24 channels, fewer legacy devices and virtually no interferers, is ideal for high-bandwidth, latency-sensitive applications that require uninterrupted throughput: HD video streaming, VoIP calls and multi-player online gaming.

“The Microsoft Windows Vista® operating system advocates use of dual-concurrent networks and the allocation of applications onto separate frequency bands based on throughput requirement, latency-sensitivity and interference in the network. In order for retail network routers to earn the Windows Vista Premium Certification logo, they must offer dual-concurrent operation…”

SF Wi-Fi ‘elephant’ tramples Google, mayor

San Francisco's showcase Wi-Fi project is turning into a quagmire for both city mayor Gavin Newsom, and Google. Newsom announced the project in October 2005, and Google showered the mayor with affection: a trip to Davos in Larry and Sergei's private jet, and the company offered him campaign contributions. Not surprisingly, ...


Can UWB complement WiFi to reduce 2.4GHz congestion ?

From "UWB could reduce anti-social use of Wifi - when MPs get round to it," by Clive Akass, Personal Computer World's "The Test Bed" blog, 17 January 2007: "Open a laptop anywhere in central (even outer) London and the chances are that you will find four or five Wifi networks within ...


600Mbps Wi Fi data transfers by using concurrent use of 2.4 and 5GHz bands by Atheros

Atheros Communications, Inc., a leading developer of advanced wireless solutions, today announced the launch of its highest performance 802.11n solution to date. The AR5008AP-3NX2 chipset's concurrent operation in the 2.4 GHz and 5 GHz wireless LAN (WLAN) frequency bands delivers up to 600 megabits-per-second (Mbps) aggregate physical data rates and ...


Mobile Wi Fi hotspots in Cars.

During next week's Consumer Electronics Show in Las Vegas, San Francisco-based Autonet Mobile will show off its portable router, designed to bring Wi-Fi to an area still largely devoid of Internet access - the automobile. 'Our goal was to make the car cool again,' said Sterling Pratz, Autonet Mobile's co-founder and ...


7 Years Jail for Using neighbours unsecured WiFi Network.

A YOUNG man who allegedly used his neighbour's unsecured wireless network to post a bomb hoax online was charged yesterday, the second person to be prosecuted for illegal wireless access.Twenty-one-year-old Lin Zhenghuang is accused of posting a message on popular technology website HardwareZone in July 2005, saying there was a ...