Title :
Multiple access performance in UWB systems using time hopping vs. direct sequence spreading
Author :
Somayazulu, V. Srinivasa
Author_Institution :
Intel Labs., Hillsboro, OR, USA
Abstract :
Ultra-wideband radio systems operate using extremely short duration signaling pulses. Spread spectrum techniques for multiple access and interference suppression are commonly considered for such systems. We compare time-hopping spread spectrum with pulse position modulation (TH-PPM) and time-hopping/direct-sequence spreading with antipodal signaling (TH/DS-BPSK) in terms of their multiple access performance, and present some arguments for the use of one versus the other in a given system.
Keywords :
interference suppression; multiuser channels; phase shift keying; pulse position modulation; radiofrequency interference; spread spectrum communication; telecommunication signalling; TH-PPM; TH/DS-BPSK; UWB systems; antipodal signaling; direct sequence spreading; interference suppression; multiple access performance; pulse position modulation; short duration signaling pulses; signaling waveforms; spread spectrum techniques; time-hopping spread spectrum; time-hopping/direct-sequence spreading; ultra-wideband radio systems; Binary phase shift keying; Detectors; Interference; Modulation coding; Narrowband; Pulse modulation; Pulse shaping methods; Shape; Spread spectrum communication; Ultra wideband technology;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993322
