Title :
A novel resource allocation strategy for distributed MIMO multi-hop multi-commodity communications
Author :
Lang, Yulung ; Bockelmann, C. ; Wubben, Dirk ; Dekorsy, Armin ; Sollner, Matthias
Author_Institution :
Univ. of Bremen, Bremen
Abstract :
In this paper, we present a near-optimum resource allocation strategy for distributed multiple-input-multiple-output multiple hops multiple commodities OFDMA wireless networks. The novel per-hop-optimization strategy aims to reduce the total transmission power of the network while meeting the individual end-to-end outage probability constraint of each commodity, i.e. for each link of the network. It utilizes the Greedy edge-coloring algorithm to determine reused orthogonal subbands for overlapping hops and allows a distributed implementation per hop. In comparison to other bandwidth allocation strategies like equal or dynamic bandwidth for each commodity, our per-hop-bandwidth-allocation (PHBA) approach uses the bandwidth in a near-optimum way and reduces the total transmission power significantly.
Keywords :
MIMO communication; OFDM modulation; antenna arrays; bandwidth allocation; greedy algorithms; optimisation; probability; quality of service; radio networks; Greedy edge-coloring algorithm; OFDMA wireless networks; PHBA; antenna arrays; distributed MIMO multi-hop multi-commodity communications; end-to-end outage probability constraint; multiple-input-multiple-output; novel resource allocation strategy; orthogonal subbands; per-hop-bandwidth-allocation approach; per-hop-optimization strategy; quality of service; Conferences; MIMO; Resource management;
Conference_Titel :
Smart Antennas, 2008. WSA 2008. International ITG Workshop on
Conference_Location :
Vienna
Print_ISBN :
978-1-4244-1756-8
Electronic_ISBN :
978-1-4244-1757-5
DOI :
10.1109/WSA.2008.4475547