Combine-and-forward: A linear cooperative multi-level communication strategy for distributed MIMO relays
Publication Date
2-1-2020
Document Type
Article
Publication Title
Physical Communication
Volume
38
DOI
10.1016/j.phycom.2019.100922
Abstract
This work analyzes cooperative networks in which a single source message is retransmitted by multiple levels of relays that are equipped with multiple antennas. In the considered scheme, each relay linearly combines its receptions from multiple antennas and multiple levels before adjusting its power and forwarding it. The proposed scheme outperforms the previously proposed methods that are based on decoding and forwarding in the low SNR regime. The contributions of this paper are two-fold: (i) it provides an analytical framework for the statistics of the accumulated signal and the accumulated noise as functions of network parameters such as noise level, power level, number of antennas, and multi-hop diversity for dense networks; (ii) it shows that the performance of multi-level networks can be improved simply by combining the receptions from the previous levels and multiple antennas in a linear fashion.
Keywords
Broadcasting, Communication system performance, Communication system signaling, Cooperative communication, MIMO, Relays
Department
Electrical Engineering
Recommended Citation
Birsen Sirkeci-Mergen. "Combine-and-forward: A linear cooperative multi-level communication strategy for distributed MIMO relays" Physical Communication (2020). https://doi.org/10.1016/j.phycom.2019.100922
