Title :
A transmission architecture with scramble selection for improving cell-edge performance and reducing PAPR in multi-cell MBMS
Author :
Chang, Hsien-Wen ; Sheu, Chorng-Ren ; Tseng, Ming-Chien ; Chen, Ching-Yung
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
To solve the cell-edge problem (deep and flat fading for long time) of multi-cell MBMS in SFN and reduce PAPR in OFDM systems simultaneously, a novel transmission architecture is proposed. Grid scrambling diversity scheme is adopted in the architecture to increase time and frequency diversity. Several grid scramblers are used and the time domain signal with smallest PAPR is selected for transmission. Some simulation results are provided to demonstrate the efficacy of the proposed architecture.
Keywords :
OFDM modulation; broadcasting; cellular radio; diversity reception; multicast communication; multimedia communication; OFDM system; SFN; cell-edge performance; grid scrambling diversity scheme; multicell MBMS; multimedia-broadcast multicast service; orthogonal frequency division multiplexing system; single frequency network; transmission architecture; Communication switching; Fading; Frequency diversity; Interleaved codes; OFDM; Partial transmit sequences; Peak to average power ratio; Switches; Time frequency analysis; Transmitters; COFDM; PAPR; SFN; cell-edge problem; multi-cell MBMS; time-frequency diversity;
Conference_Titel :
Broadband Multimedia Systems and Broadcasting, 2009. BMSB '09. IEEE International Symposium on
Conference_Location :
Bilbao
Print_ISBN :
978-1-4244-2590-7
Electronic_ISBN :
978-1-4244-2591-4
DOI :
10.1109/ISBMSB.2009.5133830
