Evaluation and Comparison of WTRP and CSMA/CA Protocols in Ad hoc Networks

Document Type : Original Article

Authors

1 member of faculty

2 Faculty of Electrical and Computer, Malek Ashtar University of Technology, Iran

Abstract

Channel sharing strategy through Media Access Control (MAC) protocols for avoiding collision is a challenging issue in Ad hoc networks. Deploying two distinct approaches, Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) and Wireless Token Ring Protocol (WTRP) play pivotal roles in MAC sublayer management. These protocols have been used in a variety of networks ranging from Internet of Things (IoT) to low rate tactical links in High Frequency (HF) band. In this paper, we investigate the operational algorithms of CSMA/CA and WTRP protocols and compare them via simulation in NS-3 simulator. The two protocols are evaluated and the appropriate protocol in terms of delay and throughput is chosen for networks with varying load, which is affected by node and packet number. Our results show that in networks with light load where high throughput is warrantied, CSMA/CA outperforms WTRP in terms of delay. However, algorithm of WTRP leads to higher throughput in networks with heavy traffic.

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History

  • Receive Date: 19 April 2020
  • Revise Date: 26 September 2020
  • Accept Date: 14 October 2021
  • First Publish Date: 23 October 2021

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