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This paper provides an overview on the rationales in incorporating massive multiple-input multiple-output (MIMO), non-orthogonal multiple access (NOMA), and interleave division multiple access (IDMA) in a unified framework. Our emphasis is on multi-user gain that refers to the advantage of allowing multi-user transmission in massive MIMO. Such a gain can potentially offer tens or even hundreds of...
In this letter, we investigate the power and rate allocation problem for decode-and-forward two-path relay systems. To deal with the inter-relay interference at the relays, two power and rate allocation schemes based on feasible power region analysis are proposed. Numerical results show that the proposed schemes can provide better power and outage performances compared with the other existing alternatives...
The traditional on-demand routing protocols for Multi-hop Heterogeneous Wireless Networks (MHWNs) generally take the hop count or the expected transmission time as the measurement for the calculation of the shortest path or the minimum link cost. However, the impact of the coupling of the intermediate nodes on the life period of routing has not been integrated into the route measurement. When the...
Diversity gain can be achieved when cooperative transmission adopted in the wireless networks, which can provide much help to weak channel communication. Much has been done on the cooperative protocol and the performance analysis. In this paper, a new cooperative schedule is proposed. In which we have discussed three issues: when cooperative transmission should be adopted, how to choose the relay...
Cooperative communication usually shares a common model-one source, several relays and one destination. In this paper, we consider the multi-source scenario in a cell to carry on cooperative communication. However, multi-user setting might causes interference in the network, given this interference, the process of relaying selection applies SINR (signal to interference noise ratio) as a criterion...
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