Name
Abstract | ||
|---|---|---|
We consider radio applications where the nodes operate on batteries so that energy consumption must be minimized while satisfying given throughput and delay requirements. In this context, we analyze the best modulation strategy to minimize the total energy consumption required to send a given number of bits. The total energy consumption includes both the transmission energy and the circuit energy consumption. We show that for both MQAM and MFSK the transmission energy decreases with the BTon product while the circuit energy consumption increases with Ton, where B is the modulation bandwidth and Ton is the transmission time. Thus, in short-range applications where the circuit energy consumption is nonnegligible compared with the transmission energy, the total energy consumption is minimized by using the maximum system bandwidth along with an optimized transmission time Ton. We derive this optimal Ton for MQAM and MFSK modulation in both AWGN channels and Rayleigh fading channels. Our optimization considers both delay and peak-power constraints. Numerical examples are given, where we exhibit up to 68% energy savings over modulation strategies that minimize the transmission energy alone. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/ICC.2003.1204511 | ICC |
Keywords | Field | DocType |
mfsk,optimisation,power consumption,awgn channels,modulation,multiple quadrature amplitude modulation,transmission energy consumption,rayleigh fading channels,peak-power constraints,energy constraints,circuit energy consumption,quadrature amplitude modulation,modulation optimization,additive white gaussian noise,frequency shift keying,multiple frequency shift keying,mqam,radio applications,delay constraints,throughput,satisfiability,hardware,circuits,bandwidth,constraint optimization,protocols | Quadrature modulation,Quadrature amplitude modulation,Rayleigh fading,Computer science,Real-time computing,Modulation,Bandwidth (signal processing),Transmission time,Throughput,Energy consumption | Conference |
Volume | ISBN | Citations |
4 | 0-7803-7802-4 | 71 |
PageRank | References | Authors |
13.38 | 7 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shuguang Cui | 1 | 5382 | 368.45 |
| Andrea J. Goldsmith | 2 | 14992 | 1685.67 |
| Ahmad Bahai | 3 | 602 | 65.90 |