Title :
Diversity schemes in interference-limited wireless networks with low-cost radios
Author :
Schilcher, Udo ; Brandner, Günther ; Bettstetter, Christian
Author_Institution :
Mobile Syst. Group, Univ. of Klagenfurt, Klagenfurt, Austria
Abstract :
We investigate the impact of time diversity and space-time diversity schemes on the traffic capacity of large-scale wireless networks with low-cost radios. Especially, we analyze the tradeoff between relaying gain and increased interference due to additional traffic. The results of a simulation-based study imply that cooperative relaying with selection combining shows benefits for low interference scenarios. For high traffic, however, higher-order modulation schemes outperform the investigated cooperative relaying scenario due to lower interference.
Keywords :
cooperative communication; diversity reception; radio networks; telecommunication traffic; cooperative relaying; higher-order modulation scheme; interference-limited wireless network; low-cost radio; space-time diversity scheme; time diversity; traffic capacity; Bit rate; Diversity reception; Interference; Nonhomogeneous media; Receivers; Relays; Signal to noise ratio; Cooperative relaying; Rayleigh fading; interference; network capacity;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2011 IEEE
Conference_Location :
Cancun, Quintana Roo
Print_ISBN :
978-1-61284-255-4
DOI :
10.1109/WCNC.2011.5779249