Title :
Performance of ultra-wideband communications in the presence of interference
Author :
Zhao, Li ; Haimovich, Alexander M. ; Grebel, Haim
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
In this paper we analyze the performance of ultra-wideband (UWB) communications in the presence interference. The interference is modeled as a zero mean random process with constant power spectral density over a certain bandwidth. Closed-form expressions are developed for the processing gain of a pulse position modulation UWB utilizing rectangular pulses. Simple approximations are obtained for special cases (narrowband and wideband interference). We compare the interference suppression properties of UWB and direct-sequence spread spectrum (DS-SS) under certain assumptions. It is shown that in case of narrowband interference (with respect to the spread spectrum bandwidth), UWB provides more effective interference suppression than DS-SS
Keywords :
interference suppression; pulse position modulation; radiocommunication; radiofrequency interference; spread spectrum communication; DS-SS system; PPM; UWB communications; closed-form expressions; constant power spectral density; direct-sequence spread spectrum system; interference suppression; narrowband interference; processing gain; pulse position modulation; rectangular pulses; spread spectrum bandwidth; ultra-wideband communications; wideband interference; zero mean random process; Bandwidth; Closed-form solution; Interference suppression; Narrowband; Performance analysis; Pulse modulation; Signal processing; Spread spectrum communication; Ultra wideband technology; Wireless communication;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.937213
