科研之友
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摘要
A novel peak to average power ratio (PAR) control algorithm for feedback controlled multitone hopping code division multiple access (FC/MH CDMA) signals is proposed In FC/MH CDMA since each chip consists of plural tones the energy consumption due to a large PAR is not negligible at the transmitter The proposed PAR control algorithm iteratively constructs a time frequency code that achieves a preset target PAR under the condition that all signals are asynchronously trans mated A PAR of I dB is shown to be achievable and the bit error rate performance is shown to be only slightly influenced if the target PAR is set to be larger than 3 dB The Influence of quantization is also discussed in terms of its application to limited feedback channels
- 出版日期2010-11
