Title :
Block-spreading codes for impulse radio multiple access through ISI channels
Author :
Yang, Liuqing ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electron. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
Transmitting digital information using ultra-short pulses, impulse radio (IR) has received increasing interest for multiple access (MA). Analog IRMA utilizes pulse-position modulation (PPM) and random time-hopping codes to mitigate inter-symbol interference (ISI) and suppress multiuser interference (MUI) statistically. We develop an all-digital IRMA scheme that relies on block-spreading and judiciously designed transceiver pairs to eliminate MUI deterministically, and regardless of ISI multipath effects.
Keywords :
block codes; broadband networks; digital radio; interference suppression; intersymbol interference; multi-access systems; multipath channels; multiuser channels; pulse position modulation; radio networks; spread spectrum communication; transceivers; ISI; ISI channels; PPM; analog IRMA; block-spreading; block-spreading codes; digital information transmission; impulse radio multiple access; intersymbol interference; multipath effects; multiuser interference suppression; pulse-position modulation; random time-hopping codes; transceiver; ultra-short pulses; ultra-wide band communication system; Baseband; Chromium; Downlink; Interference suppression; Intersymbol interference; Modulation coding; Multiuser detection; Pulse modulation; Receivers; Transceivers;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996967
