TY - GEN
T1 - Energy-aware adaptive OFDM systems
AU - Emre, Y.
AU - Chakrabarti, Chaitali
PY - 2010/11/8
Y1 - 2010/11/8
N2 - An effective way of reducing the energy consumption without affecting the quality of service is by adapting to the channel conditions. In this paper we describe one such scheme for an OFDM system using space division multiplexing technology. We consider tuning parameters such as modulation level and number of antennas that are considered by WiMax and LTE, as well as number of sub-carriers, peak to average power ratio, interpolation, pilot length and cyclic prefix. We describe a two-phase procedure for determining the parameter settings for minimizing energy consumption given the transmission rate, error performance and channel conditions for frequency selective fading channels. Our results show that we can reduce energy by an additional 5%-30% compared to systems that can only adapt modulation order and number of antennas.
AB - An effective way of reducing the energy consumption without affecting the quality of service is by adapting to the channel conditions. In this paper we describe one such scheme for an OFDM system using space division multiplexing technology. We consider tuning parameters such as modulation level and number of antennas that are considered by WiMax and LTE, as well as number of sub-carriers, peak to average power ratio, interpolation, pilot length and cyclic prefix. We describe a two-phase procedure for determining the parameter settings for minimizing energy consumption given the transmission rate, error performance and channel conditions for frequency selective fading channels. Our results show that we can reduce energy by an additional 5%-30% compared to systems that can only adapt modulation order and number of antennas.
KW - Energy optimization
KW - OFDM
KW - Parameter tuning
KW - QoS
UR - http://www.scopus.com/inward/record.url?scp=78049360692&partnerID=8YFLogxK
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U2 - 10.1109/ICASSP.2010.5495534
DO - 10.1109/ICASSP.2010.5495534
M3 - Conference contribution
AN - SCOPUS:78049360692
SN - 9781424442966
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 1590
EP - 1593
BT - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings
T2 - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010
Y2 - 14 March 2010 through 19 March 2010
ER -