Cross layer PHY-MAC protocol for wireless static and mobile ad hoc networks

Authors:
Sylwia Romaszko;Chris Blondia
Affiliations:
Interdisciplinary Institute for Broadband Technology, University of Antwerp, Antwerp, Belgium;Interdisciplinary Institute for Broadband Technology, University of Antwerp, Antwerp, Belgium
Venue:
EURASIP Journal on Advances in Signal Processing - Special issue on signal processing applications in network intrusion detection systems
Year:
2009

Citing 12
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Does the IEEE 802.11 MAC protocol work well in multihop wireless ad hoc networks?

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PASA: power adaptation for starvation avoidance to deliver wireless multimedia

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Review Article: Rate management in multiuser detection based MAC design for ad hoc networks

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Abstract

Multihop mobile wireless networks have drawn a lot of attention in recent years thanks to their wide applicability in civil and military environments. Since the existing IEEE 802.11 distributed coordination function (DCF) standard does not provide satisfactory access to the wireless medium in multihop mobile networks, we have designed a cross-layer protocol, (CroSs-layer noise aware power driven MAC (SNAPdMac)), which consists of two parts. The protocol first concentrates on the flexible adjustment of the upper and lower bounds of the contention window (CW) to lower the number of collisions. In addition, it uses a power control scheme, triggered by the medium access control (MAC) layer, to limit the waste of energy and also to decrease the number of collisions. Thanks to a noticeable energy conservation and decrease of the number of collisions, it prolongs significantly the lifetime of the network and delays the death of the first node while increasing both the throughput performance and the sending bit rate/throughput fairness among contending flows.