Communications in computer and information science: techniques on relaying for LTE-advanced network

• Main Authors: Ab. Ghafar, Aimi Syamimi, Satiman, Nurulashikin, Fisal, Norsheila, Mohamad Maharum, Siti Marwangi, Saparudin, Faiz Asraf, Abdul Rashid, Rozeha, Syed Yusof, Sharifah Kamilah, Katiran, Norshida
• Format: Article
• Published: Springer 2011
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/44793/

Relay-assisted cellular network is a major concern in research studies around the world as it can aid the cell to achieve coverage extension and capacity enhancement. Long Term Evolution-Advanced (LTE-A), a candidate from Third Generation Partnership Project (3GPP) has include relaying as one of its key technologies to meet International Mobile Telecommunications (IMT) Advanced requirements. This article focuses on relay architectures from LTE-A and the types of relay defined in the standard. Pros and cons of developed relaying strategies, transmission schemes together with relay selection pairing scheme are also reviewed. This article also provides simulation results comparing performance between transmission with and without the usage of relay. In addition, recent studies extending the relaying concept such as cognitive and cooperative relaying as a hot research topic are also discussed.