Title :
Energy Efficient Design in Wireless OFDMA
Author :
Miao, Guowang ; Himayat, Nageen ; Li, Ye Geoffrey ; Bormann, David
Author_Institution :
Sch. of ECE, Georgia Inst. of Technol., Atlanta, GA
Abstract :
Energy-efficient transmission is an important aspect of wireless system design due to limited battery power in mobile devices. We consider uplink energy-efficient transmission in OFDMA systems since mobile stations are battery powered. We account for both circuit and transmit power when designing energy-efficient communication mechanisms and emphasize energy efficiency over peak rates or throughput. Both link adaptation and resource allocation schemes are developed to optimize the overall bits transmitted per Joule of energy, which allows for maximum energy savings in a network. Our simulation results show that the proposed schemes significantly improve energy efficiency.
Keywords :
OFDM modulation; frequency division multiple access; mobile radio; OFDMA; energy saving; mobile device; mobile station; orthogonal frequency division multiple access; uplink energy-efficient transmission; wireless system design; AWGN; Batteries; Circuits; Data communication; Energy consumption; Energy efficiency; Mobile communication; Quality of service; Resource management; Throughput;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.622
