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2008

On-Demand Medium Access in Multihop Wireless Networks with Multiple Beam Smart Antennas

8 years 10 months ago
On-Demand Medium Access in Multihop Wireless Networks with Multiple Beam Smart Antennas
The paper presents a detailed discussion of various issues involved in designing a medium access control (MAC) protocol for multihop wireless networks with nodes employing multiple beam smart antennas. Multiple beam smart antennas can form several beams simultaneously and can initiate concurrent transmissions or receptions in them, thereby increasing the throughput of the bottleneck nodes. Traditional on-demand MAC protocols for omnidirectional and single beam directional antennas based on the IEEE 802.11 distributed coordination function (DCF) mechanism cannot take advantage of this unique capability of multiple beam antennas as they do not facilitate concurrent transmissions or receptions by a node. This paper introduces a novel protocol, hybrid MAC (HMAC), which enables concurrent packet reception (CPR) and concurrent packet transmission (CPT) at a node equipped with multiple beam antennas and is backward compatible with IEEE 802.11 DCF. Simulation results show the superior performa...
Vivek Jain, Anurag Gupta, Dharma P. Agrawal
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TPDS
Authors Vivek Jain, Anurag Gupta, Dharma P. Agrawal
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