A DMAC Protocol to Improve Spatial Reuse in Wireless Ad Hoc Network


Authors : Md Nasre Alam; Sebahadin Nasir; Getachew Worku; Demeke Getaneh; Tizazu Bayih

Volume/Issue : Volume 6 - 2021, Issue 11 - November

Google Scholar : http://bitly.ws/gu88

Scribd : https://bit.ly/3F2B9Uz

Generally, a node have omnidirectional antenna in wireless network. While a node is communicating, the vicinity nodeshave tosilent even they have packet to send. Thus, we can’t get better spatial reuse because of the Omni direction antenna. Because of collision in the network with more nodes reduces the performance. But, since last decade the researcher got more attention with directional antenna than omnidirectional antenna because of its spatial reuse and higher range of packet transmission. But, the hidden and deaf node problem is severe as well. We proposed a system that takes benefits of directional antennas like spatial reuse, higher transmission range. Moreover, our scheme combat against deaf and hidden node problem. Using our scheme we derived saturation network throughput and delay. In order to validate we use OPNET simulation tool. The analytical and simulation results illustrations that the performance of the network is enhanced.

Keywords : WSN, hidden and deaf node problem, Directional antenna, Directional MAC

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