IMT-advanced relay standards

Authors:
Kanchei Loa;Chih-Chiang Wu;Shiann-Tsong Sheu;Yifei Yuan;Mary Chion;David Huo;Ling Xu
Affiliations:
Institute for Information Industry;Institute for Information Industry;National Central University;ZTE Corporation;ZTE Corporation;ZTE Corporation;ZTE Corporation
Venue:
IEEE Communications Magazine
Year:
2010

Citing 2
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Abstract

There are two candidates for IMT-Advanced (4G) standards, LTE-Advanced by 3GPP and 802.16m by IEEE. This article focuses on relay architectures in 16m and LTE-A, and discusses design principles and trade-offs leading to decisions in each standards group. Basically, 16m relay and LTE-A Release 10 relay are very similar technologies where the relay is essentially an orthogonal frequency-division multiple access base station with a wireless backhaul link. However, some open issues, such as mobility, power saving, multihop architecture, transparent relaying, multi-arrier transmission, and cooperative transmission, are still left as challenges for engineers and researchers. This article provides insights to both relay standards that could be helpful for readers to fully comprehend practical ways of incorporating relays into 4G wireless broadband networks.