TITLE:
A Contention-Based MAC and Routing Protocol for Wireless Sensor Network
AUTHORS:
Chung Yee Haw, Azlan Awang, Fawnizu Azmadi Hussin
KEYWORDS:
Wireless Sensor Network, Inefficient Routing Strategy, Cross-Layer Design, CSBF Protocol, Geographical Information, SNIR Metric
JOURNAL NAME:
Wireless Sensor Network,
Vol.15 No.1,
January
31,
2023
ABSTRACT: Advance development of wireless technologies and micro-sensor systems have enabled Wireless Sensor Network (WSN) to emerge as a leading
solution in many crucial sensor-based
applications. WSN deploys numerous resource-constrained
sensor nodes which have limited power supply, memory and computation capability in a
harsh environment. Inefficient routing strategy results in degraded network
performance in terms of reliability, latency and energy efficiency. In this paper, a cross-layer design,
Contention-based MAC and Routing
protocol is proposed, termed Contention/SNIR-Based Forwarding (CSBF)
protocol. CSBF utilizes the geographical information of sensor nodes to
effectively guide the routing direction towards destination node, thereby enhancing reliability. Furthermore,
Signal-to-Noise-plus-Interference Ratio (SNIR) metric is used as a routing parameter to guarantee high quality link
for data transmission. A Contention-Winner Relay scheme is utilized to reduce
the delays caused by the contention procedure. Energy efficiency is also improved by introducing sleep mode technique in
CSBF. The simulation work is carried out via OMNeT++ network simulator.
The performance of CSBF is compared with other existing routing protocols such
as AODV and DSDV in terms of packet delivery
ratio (PDR), average end-to-end (ETE) delay and energy consumption per
packet. Simulation results highlight that CSBF outperforms AODV and DSDV
protocols in respect of PDR and energy efficiency. CSBF also has the most
consistent overall network performance.