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Modulation and coding scheme selection in multimedia broadcast over a single frequency network‐enabled long‐term evolution networks
Author(s) -
Alexiou Antonios,
Bouras Christos,
Kokkinos Vasileios,
Papazois Andreas,
Tsichritzis George
Publication year - 2012
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.1326
Subject(s) - multimedia broadcast multicast service , computer science , computer network , single frequency network , multicast , linear network coding , coding (social sciences) , bandwidth (computing) , term (time) , wireless network , spectral efficiency , cellular network , wireless , telecommunications , network packet , transmission (telecommunications) , channel (broadcasting) , statistics , physics , mathematics , quantum mechanics
SUMMARY Long term evolution constitutes the next generation cellular network beyond 3G that is designed to support the explosion in demand for bandwidth‐hungry multimedia services in wireless networks by providing an extremely high performance radio access technology. To support multimedia broadcast/multicast services (MBMS), long term evolution offers the functionality to transmit MBMS over a single frequency network, where a time‐synchronized common waveform is transmitted from multiple cells for a given duration. This enables over‐the‐air combining, thus significantly improving the spectral efficiency (SE) compared with conventional MBMS operations. In MBMS over a single frequency network transmissions, the achieved SE is mainly determined by the modulation and coding scheme selected. This study proposes and evaluates four approaches for the selection of the modulation and coding scheme. Each approach corresponds to different users' distribution and multimedia traffic conditions. On the basis of SE measurements, we determine the approach that either maximizes or achieves a target SE for the corresponding users' distribution and traffic conditions. Copyright © 2011 John Wiley & Sons, Ltd.