Title :
On the Capacity of Non-Orthogonal Pulse Position Modulation for Time-Hopping UWB Communications
Author :
Zhang, Hao ; Li, Wei ; Gulliver, T. Aaron
Author_Institution :
Ocean Univ. of China, Qingdao
Abstract :
In this paper, we study the capacity of non-orthogonal pulse position modulation (NPPM) for ultra-wideband (UWB) communication systems. The channel capacity of NPPM is determined for a time-hopping multiple access UWB system. It is shown that with proper selection of the pulse waveform and modulation index, NPPM can achieve a higher capacity than orthogonal PPM.
Keywords :
multi-access systems; pulse width modulation; ultra wideband communication; channel capacity; modulation index; nonorthogonal pulse position modulation; pulse waveform; time-hopping UWB communications; time-hopping multiple access UWB system; ultra-wideband communication systems; AWGN channels; Amplitude modulation; Channel capacity; Constellation diagram; Multiaccess communication; Oceans; Pulse modulation; Transmitters; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Communications, Computers and Signal Processing, 2007. PacRim 2007. IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1189-4
Electronic_ISBN :
1-4244-1190-4
DOI :
10.1109/PACRIM.2007.4313240
