Title :
Design and performance of a multiple access CPM-SC-FDMA transmission scheme
Author :
Wylie-Green, Marilynn P. ; Perrins, Erik S. ; Svensson, Tommy
Author_Institution :
Nokia Siemens Networks, Irving, TX
Abstract :
This paper presents a novel modulation scheme which combines key characteristics of single carrier frequency division multiple access (SC-FDMA) with continuous phase modulation (CPM) to increase the power amplifier efficiency of SC-FDMA transmissions. CPM-SC-FDMA is developed based upon the observation that the samples from a CPM waveform - which are always constant modulus - may be treated as dasiadata symbolspsila and then DFT-spread for an SC-FDMA style transmission. The result is a new SC-FDMA waveform which generally retains much of the power efficiency of CPM. In particular, we show that two samples per symbol interval of the underlying CPM waveform are adequate to achieve good bit error rate performance. Also, trellis-terminated CPM-SC-FDMA has a low dynamic range in its envelope fluctuations and there is a gain of 6 dB in the peak-to-average power of 4-ary CPM-SC-FDMA relative to QPSK-SC-FDMA.
Keywords :
continuous phase modulation; discrete Fourier transforms; error statistics; frequency division multiple access; power amplifiers; signal sampling; DFT; QPSK-SC-FDMA; bit error rate; constant modulus; continuous phase modulation; data symbol; multiple access trellis-terminated CPM-SC-FDMA waveform transmission scheme; power amplifier; signal sampling; single carrier frequency division multiple access; Bit error rate; Computer networks; Continuous phase modulation; Design engineering; Frequency conversion; OFDM; Peak to average power ratio; Postal services; Power amplifiers; Signal design;
Conference_Titel :
Waveform Diversity and Design Conference, 2009 International
Conference_Location :
Kissimmee, FL
Print_ISBN :
978-1-4244-2970-7
Electronic_ISBN :
978-1-4244-2971-4
DOI :
10.1109/WDDC.2009.4800362
