Modelling Energy Consumption of Relay-Enabled MAC Protocols in Ad Hoc Networks

• Main Authors: Ahmad, Rizwan, Zheng, Fu-Chun, Drieberg , Micheal, Olafsson, Sverrir, Fitch, Michael
• Format: Conference or Workshop Item
• Published: 2009
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4800595; http://eprints.utp.edu.my/3656/
• Institution: Universiti Teknologi Petronas

To enhance the throughput of ad hoc networks, dual-hop relay-enabled transmission schemes have recently been proposed. Since in ad hoc networks throughput is normally related to their energy consumption, it is important to examine the impact of using relay-enabled transmissions on energy consumption. In this paper, we present an analytical energy consumption model for dual-hop relay-enabled medium access control (MAC) protocols. Based on the recently reported relay-enabled distributed coordination function (rDCF), we have shown the efficacy of the proposed analytical model. This is a generalized model and can be used to predict energy consumption in saturated relay-enabled ad hoc networks via energy decomposition. This is helpful in designing MAC protocols for cooperative communications and it is shown that using a relay results not only in a better throughput but also better energy efficiency.