TY - JOUR
T1 - Energy-constrained modulation optimization
AU - Cui, Shuguang
AU - Goldsmith, Andrea J.
AU - Bahai, Ahmad
N1 - Funding Information:
Manuscript received July 28, 2003; revised March 5, 2004; accepted July 7, 2004. The editor coordinating the review of this paper and approving it for publication is S. Sarkar. This work was supported by the National Semiconductor Corporation, by the Alfred P. Sloan Foundation, and by the U.S. Army under MURI Award W911NF-05-1-0246.
Funding Information:
Dr. Cui is the winner of the National Science and Engineering Research Council of Canada (NSERC) graduate fellowship and the Canadian Wireless Telecommunications Association (CWTA) graduate scholarship.
PY - 2005/9
Y1 - 2005/9
N2 - Wireless systems where the nodes operate on batteries so that energy consumption must be minimized while satisfying given throughput and delay requirements are considered. In this context, the best modulation strategy to minimize the total energy consumption required to send a given number of bits is analyzed. The total energy consumption includes both the transmission energy and the circuit energy consumption. For uncoded systems, by optimizing the transmission time and the modulation parameters, it is shown that up to 80% energy savings is achievable over nonoptimized systems. For coded systems, it is shown that the benefit of coding varies with the transmission distance and the underlying modulation schemes.
AB - Wireless systems where the nodes operate on batteries so that energy consumption must be minimized while satisfying given throughput and delay requirements are considered. In this context, the best modulation strategy to minimize the total energy consumption required to send a given number of bits is analyzed. The total energy consumption includes both the transmission energy and the circuit energy consumption. For uncoded systems, by optimizing the transmission time and the modulation parameters, it is shown that up to 80% energy savings is achievable over nonoptimized systems. For coded systems, it is shown that the benefit of coding varies with the transmission distance and the underlying modulation schemes.
KW - Energy efficiency
KW - Minimum frequency-shift keying (MFSK)
KW - Modulation optimization
KW - Multilevel quadrature amplitude modulation (MQAM)
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U2 - 10.1109/TWC.2005.853882
DO - 10.1109/TWC.2005.853882
M3 - Article
AN - SCOPUS:26844485330
SN - 1536-1276
VL - 4
SP - 2349
EP - 2360
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 5
ER -