Title :
Link-Adaptive Joint Path and Capacity Design for Multi-Hop Relay Backbone in TDD-OFDMA System
Author :
Kang, Hye J. ; Ahn, Chang W. ; Kang, Chung G.
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
In this paper, we consider an optimal topology control problem that dynamically configures the path and capacity under the varying traffic load for constructing a multihop backbone network in the TDD-OFDMA system. In order to deal with the co-channel interference among the different relay stations, K orthogonal subzones of OFDMA data regions are spatially reused. We present a joint path and capacity design problem that maximizes the average throughput while properly trading off the outage performance. Due to the complexity of optimal solution approach to this problem, we resort to a genetic algorithm (GA) to solve the dynamic topology design problem and compare its solution to the results from the existing heuristic algorithms.
Keywords :
frequency division multiple access; genetic algorithms; radio links; telecommunication network topology; TDD-OFDMA system; capacity design; genetic algorithm; link adaptive joint path; multihop backbone network; multihop relay backbone; optimal topology control; traffic load; Control systems; Genetic algorithms; Interchannel interference; Network topology; Optimal control; Relays; Spine; Spread spectrum communication; Telecommunication traffic; Throughput;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-5175-3
Electronic_ISBN :
978-1-4244-5176-0
DOI :
10.1109/CCNC.2010.5421688
