Energy efficient system design with optimum transmission range for wireless ad hoc networks

Abstract

-In ad hoc networks, devices are required to selforganize themselves into a network without previously established infrastructure. The kind of ad hoc network we consider in this paper is made up of a multitude of relatively low mobility, short range, wireless devices, pervasively deployed throughout the environment. One of the most important design criteria for this type of network is energy efficiency. This paper looks at the energy efficiency aspect of the system design.Specifically, this paper looks at the optimum one-hop transmission distance that will minimize the total system energy. The analysis assumes that the individual devices do not have power control, but that the transmission range of all the devices as a group can be varied in the design stage. The results show that the optimum one-hop transmission distance is independent of the physical network topology, the number of transmission sources, and the total transmission distance. It only depends on the propagation environment and the device parameters.With this result, some system design trade offs can be made to minimize the total system energy. We discuss what these parameters are, how they interact with each other, and how they can be used to obtain an energy efficient wireless system. We also discuss the implications this result has for future developments of low bit rate, short range, and highly dense wireless devices for ad hoc networks.

Energy-efficient modulation design for reliable communication in wireless networks

“…Optimization of the one-hop transmission distance without retransmission mechanism is studied in [5] while optimal routing with retransmission mechanism considering EER and HHR models is investigated [3]. In these studies, physical and device layer considerations are not incorporated in the models in detail.…”

Energy Aware Tdma Mac For Wireless Sensor Networks

“…Consider the following simple example of an N-hop network. Assume the overall distance for transmission distance is Nr, where r is the one-hop distance [4]. The minimum receiving power at a node for a given transmission error rate is P receive , and the power at a transmission node is P send .Then the RF attenuation model near the ground is given by…”

Energy distribution control in wireless sensor networks through range optimization

“…One approach is to minimize the total consumed energy to reach the destination (BS) by minimizing the energy consumed per unit flow or packet [3], [4], [5]. Another approach is to maximize the lifetime of the system, which is considered as maximizing the time to network partition or the time the first node dies [6], [7].…”