Dynamic power allocation for multi-hop linear non-regenerative relay networks

Author

Huang, Tingshan ; Chen, Wen ; Li, Jun

Author_Institution

Dept. of Electron. Eng., Shanghai Jiaotong Univ., Shanghai, China

fYear

2009

fDate

26-28 Aug. 2009

Firstpage

1

Lastpage

5

Abstract

In this paper, we analyze the optimal power allocation for the multihop linear nonregenerative relay cooperative system. The expression for the end-to-end SNR is deprived in terms of power allocation factors to each node and the channel state information, based on which, we obtain the optimal power allocation factors for each nodes by maximizing the end-to-end SNR subject to the total power constraint. Numerical simulations show that the theoretical prediction matches the simulation, and dynamic power allocation outperforms the fixed power allocation scheme.

Keywords

channel allocation; diversity reception; numerical analysis; wireless channels; channel state information; cooperative system; dynamic power allocation; multihop linear nonregenerative relay network; numerical simulation; Communication systems; Fading; Frame relay; Power system relaying; Power system reliability; Routing; Spread spectrum communication; Telecommunication network reliability; Wireless communication; Wireless networks; amplify-and-forward; end-to-end SNR; multihop linear relay networks; power allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2009. ChinaCOM 2009. Fourth International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-4337-6

Electronic_ISBN

978-1-4244-4337-6

Type

conf

DOI

10.1109/CHINACOM.2009.5339816

Filename

5339816