Developed as a simple and cost-effective wireless technology for best effort services, IEEE
802.11 has gained popularity at an unprecedented rate. However, due to the lack of built-in …

Wireless mesh networks (WMNs) consist of mesh routers and mesh clients, where mesh
routers have minimal mobility and form the backbone of WMNs. They provide network …

This book presents an in-depth study on the recent advances in Wireless Sensor Networks
(WSNs). The authors describe the existing WSN applications and discuss the research …

• If two consecutive ACK frames are not received correctly, the second retry and subsequent
transmissions are done at a lower rate and a timer is started.• When the number of …

Accurately selecting modulation rates for time-varying channel conditions is critical for
avoiding performance degradations due to rate overselection when channel conditions …

In IEEE 802.11 standard, the backoff parameters of its collision avoidance mechanism can
be very inefficient and hence, the network becomes far from its optimal behavior. There have …

We present a link adaptation strategy for multiple-input multiple-output (MIMO) orthogonal
frequency division multiplexing (OFDM) based wireless communications. Our objective is to …

The mechanism to select one out of multiple available transmission rates at a given time is
referred to as link adaptation. The effectiveness of a link adaptation scheme depends on …

This book offers a comprehensive explanation on how to dimension, plan, and optimize
WiMAX networks. The first part of the text introduces WiMAX networks architecture, physical …

Many rate-adaptive MAC protocols have been proposed in the past for wireless local area
networks (LANs) to enhance the throughput based on channel information. Most of these …