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A distributed, load-aware, power and frequency bargaining protocol for LTE-based networks
Linköpings universitet, Institutionen för teknik och naturvetenskap, Kommunikations- och transportsystem. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för teknik och naturvetenskap. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för teknik och naturvetenskap. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Kommunikations- och transportsystem. Linköpings universitet, Tekniska högskolan.
2012 (engelsk)Inngår i: 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), Piscataway, NJ, USA: IEEE , 2012, s. 6525-6529Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

A distributed, load-aware, joint power and frequency allocation protocol is introduced for LTE-based cellular networks, and system-level simulations are performed. Our proposed scheme aims to cooperatively limit the impact of Fractional Frequency Reuse (FFR) on the center users throughput compared to the Reuse 1 scheme, while providing sufficient throughput for the edge users. This is achieved through an asynchronous, lightweight scheme of local message exchange between neighboring LTE eNodeBs. The proposed scheme facilitates a type of "bargain" where an overloaded sector requests permission to utilize its neighbors edge bands for its center users at a limited set of transmit power levels. Grants are generated at each neighbor by solving a small-scale optimization problem. Using an LTE simulator we evaluate our scheme on a network with 21 sectors of varying load patterns. The proposed schemes performance for center users is consistently improved with respect to FFR-3, while for edge users the performance degradation is controlled by a parameter we set in the optimization problems definitions; compared to Reuse 1 edge users still have gains. Specifically, we observed up to a 46% gain in the sectors center throughput with a cost below 9% at the edges when compared to the classic FFR scheme, while the overall system throughput goes up by up to 26% in heavily loaded scenarios.

sted, utgiver, år, opplag, sider
Piscataway, NJ, USA: IEEE , 2012. s. 6525-6529
Serie
IEEE International Conference on Communications, ISSN 1550-3607
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-96554DOI: 10.1109/ICC.2012.6364818ISI: 000312855706156ISBN: 978-1-4577-2052-9 (tryckt)ISBN: 978-1-4577-2051-2 (tryckt)OAI: oai:DiVA.org:liu-96554DiVA, id: diva2:642259
Konferanse
IEEE International Conference on Communications (ICC), Ottawa, ON, Canada, 10-15 June 2012
Tilgjengelig fra: 2013-08-21 Laget: 2013-08-20 Sist oppdatert: 2014-04-22bibliografisk kontrollert

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