TY - GEN
T1 - Dynamic topology control for multi-hop relaying in a cellular TDD-OFDMA system
AU - Kang, Hye J.
AU - Ryu, Hyun S.
AU - Kang, Chung G.
PY - 2009
Y1 - 2009
N2 - This paper introduces a notion of divide-by-K reuse strategy, which allows for K orthogonal chunks (subzones) of OFDMA data regions to be fully reused for all relay links throughout each cell in a N-hop relay-enhanced cellular TDD-OFDMA system with K ≤ N . Our objective is to configure a topology of relay stations subject to the divide-by- K reuse strategy, such that the end-to-end routes for relay stations are determined while maximizing the bandwidth efficiency of resource available for relay links. We propose a sub-optimal algorithm for a topology control that reduces cochannel interference while balancing the time-varying traffic load in a dynamical manner. Our system-level simulation results show that the average system throughput can be significantly improved by the proposed algorithm for the divide-by-K reuse strategy, especially with K = 3.
AB - This paper introduces a notion of divide-by-K reuse strategy, which allows for K orthogonal chunks (subzones) of OFDMA data regions to be fully reused for all relay links throughout each cell in a N-hop relay-enhanced cellular TDD-OFDMA system with K ≤ N . Our objective is to configure a topology of relay stations subject to the divide-by- K reuse strategy, such that the end-to-end routes for relay stations are determined while maximizing the bandwidth efficiency of resource available for relay links. We propose a sub-optimal algorithm for a topology control that reduces cochannel interference while balancing the time-varying traffic load in a dynamical manner. Our system-level simulation results show that the average system throughput can be significantly improved by the proposed algorithm for the divide-by-K reuse strategy, especially with K = 3.
UR - http://www.scopus.com/inward/record.url?scp=70349168873&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2009.4917690
DO - 10.1109/WCNC.2009.4917690
M3 - Conference contribution
AN - SCOPUS:70349168873
SN - 9781424429486
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings
T2 - 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
Y2 - 5 April 2009 through 8 April 2009
ER -