Advances in base- and mobile-station aided cooperative wireless communications: An overview
Rong Zhang, Li Wang, Gerard P. Parr, Osianoh Glenn Aliu, Benga Awoseyila, Nader Azarmi, Saleem Noel Bhatti, Eliane Bodanese, Hong Chen, Mehrdad Dianati, Amit Kumar Dutta, Michael Fitch, K. Giridhar, Steve Hailes, K.V.S. Hari, Muhammad Ali Imran, Aditya K. Jagannatham, Abhay Karandikar, Santosh Kawade, Mohammed Zafar Ali Khan · IEEE Vehicular Technology Magazine · 2013
In recent years, there has been an upsurge of research interest in cooperative wireless communications in both academia and industry. This article presents a simple 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 article is by no means exhaustive, but is intended to serve as a roadmap 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 and the concept of coalition network element (CNE)-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.