Title :
Self-encoded TH-PPM UWB system with iterative detection
Author :
Kim, Youn Seok ; Jang, Won Mee ; Nguyen, Lim
Author_Institution :
Dept. of Comput. & Electron. Eng., Nebraska Univ., Lincoln, NE
Abstract :
In this paper, we apply iterative detection to typical time hopping (TH) pulse position modulation (PPM) ultra wideband (UWB) spread spectrum systems. Unlike a typical TH-PPM UWB which employs repetition code, the proposed system uses self-encoded code which is updated by user information itself. To take advantage of self-encoded spread spectrum, we apply iterative detection to the TH-PPM UWB system. By means of simulation, we will investigate the bit error rate (BER) performance of the proposed system in additive white Gaussian noise (AWGN) channels and also fading channels. We observe a significant BER performance improvement over conventional TH-PPM UWB systems
Keywords :
AWGN channels; fading channels; iterative methods; modulation coding; pulse position modulation; signal detection; spread spectrum communication; ultra wideband communication; AWGN channels; BER; UWB system; additive white Gaussian noise channels; fading channels; iterative detection; repetition code; self-encoded TH-PPM; time hopping pulse position modulation; ultra wideband spread spectrum systems; AWGN; Bandwidth; Bit error rate; Detectors; FCC; Fading; Maximum likelihood estimation; Pulse modulation; Spread spectrum communication; Ultra wideband technology; TH-PPM; UWB; iterative detection; self-encoded multiple access;
Conference_Titel :
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference
Print_ISBN :
89-5519-129-4
DOI :
10.1109/ICACT.2006.206064
