Relay characteristic impact on energy consumption in heterogeneous sensor network |
| |
Authors: | Jiejia Chen A Massouri L Clavier C Loyez N Rolland PA Rolland |
| |
Affiliation: | 1. IEMN-IRCICA (Lille), France;2. Institut TELECOM, TELECOM Lille 1, France |
| |
Abstract: | Indoor heterogeneous wireless sensor networks are considered in this paper. We analyze the power consumption for multihop communications with non-regenerative relays. Since sensor nodes are battery operated, energy consumption is a crucial issue. We determine the optimal relay gains and transmitted power that minimize the dissipated power for a given quality of service in a narrow band fading channel. Our work includes two main contributions: firstly, we study the energy consumption taking into account hardware aspects, especially the relays’ efficiency. In an AWGN channel, carefully analyzing the energy gain as a function of the position, we show that relay characteristics have an important impact on the multihop link consumption budget. We then use a Rice channel model based on simulations and further study the hardware impact on energy saving. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|