Wireless Communications
On improving performance for IEEE 802.11 wireless lans under congested and error-prone environments
IMSA'06 Proceedings of the 24th IASTED international conference on Internet and multimedia systems and applications
Computer Communication Networks Analysis and Design
Computer Communication Networks Analysis and Design
Analysis of Computer and Communication Networks
Analysis of Computer and Communication Networks
CSMA/CA performance under high traffic conditions: throughput and delay analysis
Computer Communications
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
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We present a new analytical model of MAC layer for wireless ad hoc networks that takes into account channel bit errors and frame retry limits for a two-way handshaking mechanism. This model offers flexibility to address key design issues such as the effects of traffic parameters and possible improvements for wireless ad hoc networks. We illustrate that an important parameter affecting the performance of binary exponential back-off is the initial back-off window size. We show that for a low bit error rate the throughput increases and, at the same time, the delay and the average energy to transmit the frame is reduced. Results show also that the negative acknowledgment (NAK)-based model proves more useful for a high bit error rate.