论文信息 - A MC-GMR Scheduler for Shared Data Channel in 3GPP LTE System

A MC-GMR Scheduler for Shared Data Channel in 3GPP LTE System

OFDMA will be the dominant multi-access method in 3GPP long term evolution (LTE) system. Multiuser scheduler plays an important role in optimizing its shared data channel (SDCH). This paper proposes and investigates a multi-carrier gradient scheduling algorithm with minimum/maximum rate constraints (MC-GMR) for downlink SDCH. The objective of MC-GMR scheduler is to maximize the system utility as well as provide quality of service (QoS) guarantee for data service. Performance is evaluated through system level simulations.

Wang Ying | Xu Ning | Zhang Ping | Zou Ting

[1] Xiaoxin Qiu,et al. On the performance of adaptive modulation in cellular systems , 1999, IEEE Trans. Commun..

[2] Alexander L. Stolyar,et al. Optimal utility based multi-user throughput allocation subject to throughput constraints , 2005, Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies..

[3] Matthew S. Grob,et al. CDMA/HDR: a bandwidth-efficient high-speed wireless data service for nomadic users , 2000, IEEE Commun. Mag..

[4] Frank Kelly,et al. Rate control for communication networks: shadow prices, proportional fairness and stability , 1998, J. Oper. Res. Soc..

[5] Andrea J. Goldsmith,et al. Degrees of freedom in adaptive modulation: a unified view , 2001, IEEE Trans. Commun..

[6] Khaled Ben Letaief,et al. Multiuser adaptive subcarrier-and-bit allocation with adaptive cell selection for OFDM systems , 2004, IEEE Transactions on Wireless Communications.

[7] Alexander L. Stolyar,et al. On the Asymptotic Optimality of the Gradient Scheduling Algorithm for Multiuser Throughput Allocation , 2005, Oper. Res..