TY - GEN
T1 - Distributed SC-FDMA resource allocation algorithm based on the hungarian method
AU - Noh, Jung Hoon
AU - Oh, Seong Jun
PY - 2009
Y1 - 2009
N2 - In this paper we focus on a SC-FDMA system's resource allocation problem considering the uplink of the 3GPP Long Term Evolution system. We first define a utility function at each sector aiming at maximizing sum of average SINR, and implement the fairness factor which enables the resource allocator to schedule resources fairly among the users. Then, for the fairness-aware utility function, the optimization problem is solved using the iterative Hungarian. In multi-cell system, as the users suffer a uncorrelated inter-cell interference, it is difficult to find the globally optimal radio resource allocation. We propose a distributed allocation method which avoids the drastic interference level changes. Results exhibit that the proposed allocation method has a robustness to the interference variation and can be close to the globally optimal allocation.
AB - In this paper we focus on a SC-FDMA system's resource allocation problem considering the uplink of the 3GPP Long Term Evolution system. We first define a utility function at each sector aiming at maximizing sum of average SINR, and implement the fairness factor which enables the resource allocator to schedule resources fairly among the users. Then, for the fairness-aware utility function, the optimization problem is solved using the iterative Hungarian. In multi-cell system, as the users suffer a uncorrelated inter-cell interference, it is difficult to find the globally optimal radio resource allocation. We propose a distributed allocation method which avoids the drastic interference level changes. Results exhibit that the proposed allocation method has a robustness to the interference variation and can be close to the globally optimal allocation.
KW - Inter-cell interference
KW - Multi-cell
KW - OFDMA
KW - Resource allocation
KW - SC-FDMA
UR - http://www.scopus.com/inward/record.url?scp=77951477028&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951477028&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2009.5378857
DO - 10.1109/VETECF.2009.5378857
M3 - Conference contribution
AN - SCOPUS:77951477028
SN - 9781424425150
T3 - IEEE Vehicular Technology Conference
BT - Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
T2 - 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
Y2 - 20 September 2009 through 23 September 2009
ER -