Title :
Efficient power allocations in wireless ARQ protocols
Author :
Arulselvan, Naveen ; Berry, Randall
Author_Institution :
Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA
Abstract :
In this paper, efficient power allocation strategies for ARQ protocols operating in wireless environments are studied. Power as well as transmission rate is optimally adapted by the sender based on channel state information (CSI) obtained through feedback, while guaranteeing quality-of-service (QoS) constraints such as average throughput or average delay. The power policies adopted for basic ARQ protocols are characterized, and a comparison of their performance is studied. Numerical results are presented for a Rayleigh fading channel.
Keywords :
Rayleigh channels; automatic repeat request; delays; error correction codes; feedback; mobile radio; optimal control; power control; protocols; quality of service; telecommunication traffic; CSI; QoS constraints; Rayleigh fading channel; average delay; average throughput; channel state information; efficient power allocation; error control; feedback; optimal adaptation; performance; quality of service; transmission rate; wireless ARQ protocols; Automatic repeat request; Couplings; Delay; Error correction; Physical layer; Telecommunication network reliability; Throughput; Transmitters; Wireless application protocol; Wireless networks;
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Print_ISBN :
0-7803-7442-8
DOI :
10.1109/WPMC.2002.1088323
