Enhancing the QoS of wireless Ad hoc networks by improving the Throughput

被引:0
作者
Shoba, L. K. [1 ]
Hency, V. Berlin [1 ]
Sridharan, D.
机构
[1] Anna Univ, MIT, Dept IT, Madras 600025, Tamil Nadu, India
来源
PROCEEDINGS OF 2009 INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND COMPUTING (IACSIT ICMLC 2009) | 2009年
关键词
Fragmentation; CTMAC protocol; Throughput; PFCR; PROTOCOL;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The hottest research direction in wireless ad hoc network is in the field of throughput enhancement. The purpose of such analysis is to improve the throughput by allowing as much as possible concurrent transmissions among neighbouring nodes using single channel and by reducing the number of retransmissions which reduces the load on the channel. Using a high-throughput MAC protocol, called Concurrent Transmission MAC (CTMAC) protocol, which supports concurrent transmission while allowing the network to have a simple design with a single channel, single transceiver, and single transmission power architecture. By implementing the fragmentation algorithm in CTMAC a significant gain in throughput can be obtained compared with CTMAC. To avoid collision while accessing, a mechanism called Proportional Fair Contention algorithm is proposed. It is proposed that by adjusting the Length of access slot in the Additional control Gap (ACG), more number of concurrent data transmissions with more than two nodes is possible and the size of ACG is adjusted depending on the maximum tolerable interference power, also the number of entries in the Active neighbour list information. Simulation results designate that compared to CTMAC protocol, the proposed algorithm achieves a significant increase in network throughput thereby improving the Quality of service.
引用
收藏
页码:440 / 445
页数:6
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