Title :
PPM-based Orthogonal Space-Time Coding for IR-UWB MIMO channels affected by Poisson-distributed Multipaths
Author :
Baccarelli, Enzo ; Biagi, Mauro ; Pelizzoni, Cristian ; Cordeschi, Nicola
Abstract :
In this contribution we develop a single multiple-input multiple-output impulse radio UWB (IR-UWB) transceiver for orthogonal (OPPM) data transmitted over (baseband) multipath faded MIMO channels. The proposed maximum-likelihood receiver results to be "partially coherent", because it is optimized to work without any information on the path gains, but only on the knowledge of the arrivals\´ times of the transmitted signals\´ replicas. The performance of the proposed transceiver are evaluated via three suitable versions of the Union-Chernoff bound related to several indoor and outdoor propagation scenarios, and through such limits we introduce a novel family of unitary orthogonal space-time block codes (e.g., the space-time OPPM (STOPPM) codes), that are able to attain the maximum of diversity and coding gains
Keywords :
MIMO communication; Poisson distribution; space-time codes; transceivers; ultra wideband communication; wireless channels; IR-UWB transceiver; MIMO channels; Poisson-distributed multipaths; Union-Chernoff bound; maximum-likelihood receiver; orthogonal PPM; orthogonal space-time coding; unitary orthogonal space-time block codes; Baseband; Block codes; Diversity reception; FCC; Internet; MIMO; Performance gain; Receivers; Transceivers; Wireless personal area networks;
Conference_Titel :
Wireless Pervasive Computing, 2007. ISWPC '07. 2nd International Symposium on
Conference_Location :
San Juan
Print_ISBN :
1-4244-0523-8
Electronic_ISBN :
1-4244-0523-8
DOI :
10.1109/ISWPC.2007.342602