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Network Coding Schemes for Device-to-Device Communications Based Relaying for Cellular Coverage Extension
University of Siena, Italy.
KTH, Skolan för elektro- och systemteknik (EES), Reglerteknik. Ericsson Research, Stockholm.ORCID-id: 0000-0002-2289-3159
University of Siena, Italy.
2015 (engelsk)Rapport (Annet vitenskapelig)
Abstract [en]

Although network assisted device-to-device (D2D) communications is known to improve the spectraland energy efficiency of proximal communications, its performance is less understood when employedto extend the coverage of cellular networks.In this paper, we study the performance of D2D basedrange extension in terms of sum rate and power efficiency when a relaying user equipment (UE) helps to improvethe coverage for cell-edge UEs.In our design, the relaying UE has own traffic to transmit and receive to/from the cellular base station (BS) andcan operate either in amplify-and-forward (AF) or decode-and-forward (DF) modes and can make use of either digital oranalogue (PHY layer) network coding.In this rather general setting, we propose mode selection, resource allocation and power control schemesand study their performance by means of system simulations.We find that the performance of the DF scheme with network coding is superior both to the traditional cellularand the AF based relaying schemes, including AF with two-slot or three-slot PHY layer network coding.

sted, utgiver, år, opplag, sider
2015. , 9 s.
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-160505OAI: oai:DiVA.org:kth-160505DiVA: diva2:795210
Forskningsfinansiär
Swedish Foundation for Strategic Research , SM13-0008
Merknad

QC 20150316

Tilgjengelig fra: 2015-03-15 Laget: 2015-03-15 Sist oppdatert: 2015-03-16bibliografisk kontrollert

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