S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Electrical and Computer Engineering (전기·정보공학부) Journal Papers (저널논문_전기·정보공학부)
Frequency-time domain transmit power adaptation for OFDM systems in multiuser environment
- Jang, Jiho; Lee, Kwang Bok; Lee, Yong-Hwan
- Issue Date
- Electronics Letters, 2002, 38, (25), pp.1754-1756
- The optimal transmit power adaptation method to maximise the channel capacity of an OFDM system in a multiuser environment is developed, and is found to be water-filling in the frequency-time domain over the best subcarriers among those of multiple users at each time. The results show that the frequency-time domain power adaptation yields greater capacity than the power adaptation in the frequency domain only.
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