Title :
Outage Analysis and Optimization for Discrete Randomized Distributed Space-Time Block Coding
Author :
Zhang, Lu ; Cimini, Leonard J., Jr.
Author_Institution :
Univ. of Delaware, Newark
Abstract :
Distributed space-time block coding (Dis-STBC) achieves diversity through cooperative transmission among geographically dispersed nodes. In this paper, we provide a closed- form expression for the outage probability of discrete randomized Dis-STBC for any given number of selected relays. Further, some rules for optimizing discrete randomized Dis-STBC are presented. Simulation results show that, the optimized discrete randomized schemes can achieve almost the same end-to-end outage performance as the continuous randomized scheme, as long as the number of potential relays is much larger than the number of columns in the underlying STBC matrix.
Keywords :
block codes; matrix algebra; space-time codes; Dis-STBC; STBC matrix; continuous randomized scheme; cooperative transmission; discrete randomized distributed space-time block coding; end-to-end outage performance; geographically dispersed nodes; outage analysis; Block codes; Centralized control; Closed-form solution; Cooperative systems; Decoding; Government; Performance analysis; Propagation losses; Rayleigh channels; Relays;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.827