Improved partial proportional fair scheduling algorithm for OFDMA relay system

The improved partial proportional fair (IPPF) algorithm for OFDMA relay system is proposed, aiming at solving the fairness scheduling problem. Subcarriers are distributed to all users in both two sub-timeslots. And the relay users are regarded as two users in the subcarrier scheduling for the second sub-timeslot, so as to balance the data rates of all users. The IPPF algorithm achieves a better balance between the system throughput and user fairness, compared with the partial proportional fair (PPF) algorithm and the two-hop proportional fairness (THPF) algorithm, from the simulation results. Since the PPF algorithm only ensures the user fairness of the second sub-timeslot, and the system with THPF suffers a big throughput loss.

[1]  Abbas Jamalipour,et al.  Wireless communications , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[2]  Hui Liu,et al.  Resource Allocation for OFDMA Relay Networks With Fairness Constraints , 2006, IEEE Journal on Selected Areas in Communications.

[3]  Kin K. Leung,et al.  A Relay Assisted Cooperative Transmission Protocol for Wireless Multiple Access Systems , 2010, IEEE Transactions on Communications.

[4]  Kin K. Leung,et al.  A Relay Assisted Cooperative Transmission Protocol for Wireless Multiple Access Systems , 2010 .

[5]  Lei Huang,et al.  Resource Scheduling for OFDMA/TDD Based Relay Enhanced Cellular Networks , 2007, 2007 IEEE Wireless Communications and Networking Conference.

[6]  Halim Yanikomeroglu,et al.  Opportunities and Challenges in OFDMA-Based Cellular Relay Networks: A Radio Resource Management Perspective , 2010, IEEE Transactions on Vehicular Technology.

[7]  Lin Xiao,et al.  A Two-Hop Proportional Fairness Scheduling Algorithm for Relay Based OFDMA Systems , 2008, 2008 4th International Conference on Wireless Communications, Networking and Mobile Computing.

[8]  Raj Jain,et al.  A Quantitative Measure Of Fairness And Discrimination For Resource Allocation In Shared Computer Systems , 1998, ArXiv.

[9]  Mohamed-Slim Alouini,et al.  Variable-rate variable-power hybrid M-FSK M-QAM for fading channels , 2003, 2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484).