Heterogeneous networks (HetNets) and multicell cooperation are two key technologies in cellular networks that can improve network performance. The channel information of all the collaborating Base Stations (BSs) is one of the core factors to achieve better throughput performance gain in the coordinated multipoint (CoMP) communication. Here, we propose a novel method for handling Channel State Information (CSI) feedback in HetNet CoMP, named DCEC-HetNet: Direct CSI-feedback to Elected Coordination-station for Heterogeneous Networks. The DCEC-HetNet architecture aims to reduce the signaling overhead and feedback latency, and subsequently increase the throughput of the network. We use the Discrete Event System Specification (DEVS) formalism to model the cellular network. The simulation results demonstrate that the DCEC-HetNet architecture significantly decreases the number of CSI feedback packets being transmitted within the network, and reduces the feedback latency resulting in higher cell throughput.

Additional Metadata
Keywords CD++, CoMP, CSI, DEVS, HetNet, LTE-Advanced
Persistent URL dx.doi.org/10.1109/SPECTS.2016.7570507
Conference 2016 International Symposium on Performance Evaluation of Computer and Telecommunication Systems, SPECTS 2016
Citation
Kazi, B.U. (Baha Uddin), Etemad, M. (Mohammad), Wainer, G.A, & Boudreau, G. (Gary). (2016). Signaling overhead and feedback delay reduction in heterogeneous multicell cooperative networks. In Proceedings of the 2016 International Symposium on Performance Evaluation of Computer and Telecommunication Systems, SPECTS 2016 - Part of SummerSim 2016 Multiconference. doi:10.1109/SPECTS.2016.7570507