Next Generation Wireless LANs: Throughput, Robustness, and by Eldad Perahia, Robert Stacey

By Eldad Perahia, Robert Stacey

This intriguing and finished evaluation describes the underlying ideas, implementation info, and key improving good points of the recent IEEE 802.11n usual, which has been created to noticeably enhance community throughput. an in depth dialogue of vital energy and reliability improving good points is given as well as a transparent precis of any matters. complicated issues also are lined. With quite a few examples and simulation effects integrated to spotlight some great benefits of the hot beneficial properties, this is often an awesome reference for designers of instant neighborhood sector community (LAN) apparatus, and community managers whose structures undertake the recent general. it's also an invaluable distillation of 802.11n expertise for graduate scholars and researchers within the box of instant conversation.

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Additional info for Next Generation Wireless LANs: Throughput, Robustness, and Reliability in 802.11n

Example text

11n requirements but incorporate only a single antenna. 11n making mandatory at least two antennas in an AP, but only one antenna in a non-AP device. 5 Merging of proposals After the failed confirmation vote, a joint proposal effort was started within the task group to merge the two competing proposals. Due to entrenched positions and the large membership of the group, the joint proposal effort proceeded very slowly. As a result, Intel and Broadcom formed the Enhanced Wireless Consortium (EWC) in October 2005 to produce a specification outside the IEEE that would bring products to market faster.

The comparison criteria in Stephens (2004) outlined metrics and required disclosure of results which would allow for comparison between proposals under the same simulation setup and assumptions. The comparison criteria incorporated the simulation scenarios and usage models defined in Stephens et al. (2004). During the development of the comparison criteria, the task group realized that members of the task group did not always share the same definitions for common terms. Therefore definitions for goodput, backward compatibility, and signal-to-noise ratio (SNR) were provided.

7 Hotspot usage model. Introduction 15 and video content over the Internet or the redistribution of standard or high definition TV signals. 11g primarily through the use of spatial multiplexing using MIMO and 40 MHz operation. To take advantage of the much higher data rates provided by these techniques, MAC efficiency is also improved through the use of frame aggregation and enhancements to the block acknowledgment protocol. 11g. Robustness is improved inherently through the increased spatial diversity provided by the use of multiple antennas.

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