NDLI: Capacity upgrading in mobile ad hoc access networks (MAHANs) using CSMA/CAPA

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Capacity upgrading in mobile ad hoc access networks (MAHANs) using CSMA/CAPA

Content Provider	ACM Digital Library
Author	Wang, Shun-Te Wu, Jean-Lien C. Hsu, Chun-Yen
Abstract	From recent trends, mobile ad hoc access networks (MAHANs) have attracted high attention to be adopted in future 4G networks. The gateway in a typical MAHAN provides Internet access service for mobile nodes. In order to guarantee ubiquitous Internet accessibility, mobile nodes should cooperate to relay packets for nodes lying behind the radio coverage of the gateway. The carrier sense multiple access with collision avoidance (CSMA/CA) protocol is commonly used as the MAC protocol in ad hoc networks. However, CSMA/CA suffers from contentions and is not suitable for MAHANs where traffic flows are aggregated at the gateway. In this paper, we propose the CSMA protocol with collision avoidance, packing and accompanying (CSMA/CAPA) for MAHANs. The packing scheme allows more packets to be transmitted in a frame while the accompanying scheme allows nodes with more opportunities to transmit their frames. The feasible queueing strategy for CSMA/CAPA protocol is discussed. Simulation results show that CSMA/CAPA can significantly upgrade the capacity of MAHANs even when the channel error rate is high.
Starting Page	28
Ending Page	34
Page Count	7
File Format	PDF
ISBN	159593488X
DOI	10.1145/1164783.1164789
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-10-02
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Csma/ca Accompanying Mobile ad hoc access network (mahan) Packing
Content Type	Text
Resource Type	Article

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