Advances in base- and mobile-station aided cooperative wireless communications: An overview

Abstract

Abstract-Albeit the conception of relaying dates back to the 1970s, in recent years there has been an upsurge of search interest in cooperative wireless communications in both academia and industry. This article presents an easy-reading overview of the pivotal topics in both mobile station (MS) and base station (BS) assisted cooperation in the context of cellular radio systems. Owing to the ever-increasing amount of literature in this particular field, this paper is by no means exhaustive, but intends to serve as a roadmap for this area by assembling a representative sample of recent results and to stimulate further research. The emphasis is initially on relay-base cooperation, relying on network coding, followed by the design of cross-layer cooperative protocols conceived for MS cooperation, as well as on the concept of coalition network element assisted BS cooperation. Then, a range of complexity and backhaul traffic reduction techniques that have been proposed for BS cooperation are reviewed. A more detailed discussion is provided in the context of MS cooperation concerning the pros and cons of dispensing with high-complexity, power-hungry channel estimation. Finally, generalized design guidelines, conceived for cooperative wireless communications, are presented.

FAST: truthful auction with access flexibility for cooperative communications

“…In such scenario, the relay node assigned to that sensor node will be under‐utilised severely. Similar issues can also arise in various other cooperative uplink/downlink transmission scenarios [10, 11]. Therefore, it is necessary to provide more access flexibility in the time domain when doing relay assignment in cooperative networks.…”

A Dynamic Cell Clustering Algorithm for Maximization of Coordination Gain in Uplink Coordinated System

“…There is a central controller in the system which manages the cluster configuration. All BSs are connected via backhaul to share the CSI between all BSs and all users for a clustering at the central controller [11].…”

Individual channel estimation for amplify‐and‐forward relay networks using in‐band superimposed training

“…The transmissions with the aid of relay nodes have received a lot of attention due to their potential exploitation of both time and spatial diversity by sharing the resources of different nodes in wireless networks [1][2][3]. To fully exploit the benefits of relay-aided networks, accurate channel knowledge of different links is required for coherent reception and optimal design [4][5][6][7].…”