A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Analysis of TCP performance over mobile ad hoc networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The capacity of wireless networks
IEEE Transactions on Information Theory
Overhead energy considerations for efficient routing in wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Optimal Transmission Radius for Flooding in Large Scale Sensor Networks
Cluster Computing
Performance of energy-aware and link-adaptive routing metrics for ultra wideband sensor networks
Mobile Networks and Applications
GSN '09 Proceedings of the 3rd International Conference on GeoSensor Networks
An efficient power-aware broadcast technique for wireless ad hoc networks
SpringSim '09 Proceedings of the 2009 Spring Simulation Multiconference
An energy-aware routing protocol for ad-hoc networks based on the foraging behavior in ant swarms
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
An ant swarm-inspired energy-aware routing protocol for wireless ad-hoc networks
Journal of Systems and Software
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In mobile ad hoc networks, it is often moreimportant to optimize for energy efficiency than throughput.In this paper, we investigate the effect of transmit range onenergy efficiency of packet transmissions. We determine acommon range for all nodes such that the average energyexpenditure per received packet is minimized. In the first partof this paper, we consider stationary networks. We show thatenergy efficiency depends on various system parameters thatincludes path loss exponent of the channel, energy dissipationmodel and network offered load. In particular, when thepath loss exponent is large, energy efficiency decreases whenthe transmit range increases. Hence, the network should beoperated at the critical range that just maintains networkconnectivity. However, when the path loss exponent is small,operating at the critical range yields inferior throughput andenergy efficiency. Our results show that energy efficiency isintimately connected to network connectivity. Three networkconnectivity regimes are identified as the transmit range ofall nodes increases. In the second part, we examine the effectof node mobility on energy efficiency. We show that at normaloffered load, an optimal transmit range exists such that energyefficiency is maximized. The optimal range turns out to beinsensitive to node mobility, and is much larger than thecritical range. We show that the energy expenditure can bereduced by 15% to 73% in different mobility scenarios, if thenetwork is operated at the optimal range.