Optimal transmit power in Wireless Sensor Networks in a multipath Rician fading channel

Energy Conservation is one of the most vital aspects in Wireless Sensor Networks (WSNs) for better network durability since nodes have limited resources. Excessive high transmit power consumes more energy and increases internode interference significantly. While, low transmit power may cause network failure. Thus choice of optimal transmit power is one of the prime concern in such network. Optimal transmit power is the minimum power required to sustain the network connectivity while maintaining a predefined maximum tolerable Bit Error Rate (BER). In this paper, the effects of Rician fading are investigated on optimal transmit power, BER performance and energy consumption. Further impact of severity of Rician fading on WSN performance is also studied.

[1]  Sumit Kundu,et al.  EVALUATION OF OPTIMAL TRANSMIT POWER IN WIRELESS SENSOR NETWORKS IN PRESENCE OF RAYLEIGH FADING , 2010 .

[2]  B. Sklar,et al.  Rayleigh fading channels in mobile digital communication systems Part I: Characterization , 1997, IEEE Commun. Mag..

[3]  P. R. Kumar,et al.  Power Control in Ad-Hoc Networks: Theory, Architecture, Algorithm and Implementation of the COMPOW Protocol , 2002 .

[4]  João H. Kleinschmidt,et al.  An Analytical Model for Energy Efficiency of Error Control Schemes in Sensor Networks , 2007, 2007 IEEE International Conference on Communications.

[5]  Ian F. Akyildiz,et al.  A new ARQ protocol for wireless ATM networks , 1998, ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220).

[6]  F. Davarian.  Fade margin calculation for channels impaired by Rician fading , 1985, IEEE Transactions on Vehicular Technology.

[7]  Ian F. Akyildiz,et al.  Energy efficiency based packet size optimization in wireless sensor networks , 2003, Proceedings of the First IEEE International Workshop on Sensor Network Protocols and Applications, 2003..

[8]  Gianluigi Ferrari,et al.  Performance of ad hoc wireless networks with Aloha and PR-CSMA MAC protocol , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[9]  Gianluigi Ferrari,et al.  Optimal Transmit Power in Wireless Sensor Networks , 2006, IEEE Transactions on Mobile Computing.

[10]  Christian Bettstetter,et al.  How to achieve a connected ad hoc network with homogeneous range assignment: an analytical study with consideration of border effects , 2002, 4th International Workshop on Mobile and Wireless Communications Network.

[11]  Charles E. Perkins,et al.  Ad Hoc Networking , 2001 .

[12]  Kevin Barraclough,et al.  I and i , 2001, BMJ : British Medical Journal.

[13]  Andrea Goldsmith,et al.  Wireless Communications , 2005, 2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS).

[14]  Jie Wu,et al.  Computation of minimal uniform transmission power in ad hoc wireless networks , 2003, 23rd International Conference on Distributed Computing Systems Workshops, 2003. Proceedings..

[15]  Ian F. Akyildiz,et al.  Sensor Networks , 2002, Encyclopedia of GIS.

[16]  Kwang-Cheng Chen,et al.  Power efficient topology control in wireless ad hoc networks , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).