An Enhanced Link Adaptation Scheme Based on Cooperative Interference Prediction for MIMO-OFDM Systems

• Published in: Wireless personal communications Vol. 70; no. 2; pp. 519 - 535
• Main Authors: Peng, Yuefeng, Yang, Wei, Zhu, Yuan, Kim, Young-Il
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.05.2013; Springer
• Subjects: Access methods and protocols, osi model; Adaptation; Applied sciences; Communications Engineering; Computer Communication Networks; Dynamical systems; Dynamics; Engineering; Exact sciences and technology; Interference; Links; Modulation; Networks; Orthogonal Frequency Division Multiplexing; Radiocommunications; Signal,Image and Speech Processing; Spectra; Stations; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Link adaptation; Joint scheduling; MIMO; OFDM; MIMO system; Base station; Cluster; Scheduling; Quality assurance; Coding; Cooperation; Orthogonal frequency division multiplexing; Intercell interference
• ISSN: 0929-6212; 1572-834X
• DOI: 10.1007/s11277-012-0706-3

Dynamic inter-cell interference (ICI) causes channel quality indicator mismatch such that system throughput is reduced. In this paper, an enhanced link adaptation scheme based on cooperative interference prediction is proposed to reduce the mismatch. The scheme predicts the dynamic ICI within a cluster of base stations (BSs) for improving the link adaptation accuracy. With the dynamic ICI prediction, more accurate modulation and coding scheme can be selected without increasing the overhead over the air. System level simulations show that the proposed scheme significantly improves the system spectral efficiency (SE), especially the cell-edge SE.