Abstract
We consider the applications of multicell transmission schemes to the downlink of future wireless communication networks. A multicell multiple-input multiple output-(MIMOs) based scheme with limited coordination among neighboring base stations (BSs) is proposed to effectively combat the intercell interference by taking advantage of the degreesoffreedom in the spatial domain. In this scheme, mobile users are required to feedback channel-related information to both serving base station and interfering base station. Furthermore, a chordal distance-based compression scheme is introduced to reduce the feedback overhead. The performance of the proposed scheme is investigated through theoretical analysis as well as system level simulations. Both results suggest that the so-called “intercell interference coordination through limited feedback” scheme is a very good candidate for improving the cell-edge user throughput as well as the average cell throughput of the future wireless communication networks.
Highlights
Recent years have been marked by a soaring demand for network access
We assume that the interfering cell always accepts the recommendation from MS1 and the channel feedback is based on LTE codebook
The downlink multi-cell MIMO transmission is mainly characterized into two classes [13] in the LTE-A standards: coordinated scheduling and joint transmission
Summary
Recent years have been marked by a soaring demand for network access. This trend is exemplified by the constant growth of wireless communication systems. Improving cell-edge user throughput becomes highly nontrivial This is part of the reasons why interference mitigation technologies for generation wireless systems receive enormous attention in the standardization societies as well as in the research community [1,2,3,4]. In multi-cell MIMO, the network is required to process and transmit the data for an intended mobile user jointly from multiple geographically separated cells This technology can greatly enhance the performance of cell-edge mobile users since it effectively changes the interference into useful signals. It requires the network to have access to the full channel station information (CSI) and requires the data for the intended mobile user to be available at all base stations These two assumptions seem to be pretty restrictive in the practical wireless systems.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
