NDLI: Shrinking the reuse distance: Spectrally-efficient radio resource management in D2D-enabled cellular networks with Interference Alignment

Content Provider	IEEE Xplore Digital Library
Author	Elkotby, H.E. Elsayed, K.M.F. Ismail, M.H.
Copyright Year	2012
Description	Author affiliation: Department of Electronics and Communications Engineering, Port Said University, Egypt 42523 (Elkotby, H.E.) \|\| Department of Electronics and Communications Engineering, Cairo University, Giza, Egypt 12613 (Elsayed, K.M.F.; Ismail, M.H.)
Abstract	Enabling underlay direct Device-to-Device (D2D) communication mode in future cellular networks has good potential for spectrally-efficient and low-latency support of local media services. Recently, it has become evident that shrinking the reuse distance over which wireless resources are reused is a key enabler for achieving high spectral efficiency. Moreover, Interference Alignment (IA) based transmission can enhance the capacity of a wireless network by providing more degrees of freedom. In this work, we exploit clustering of D2D users, frequency reuse over clusters and then using IA to enhance the sum rate. Specifically, we show that in a D2D environment, it is possible to achieve significant gains in attainable rates by constructing clusters of D2D pairs and reuse the available radio resources over the clusters. Moreover, within a cluster, it is possible to further enhance the spectral efficiency by constructing small-sized groups of D2D pairs over which IA is applied to offer additional degrees of freedom. We show that resource reuse over the clusters offer overall rate increase proportional to the number of formed clusters. In addition, interference alignment offers up to 33% increase in the overall rates in the high transmission power regimes compared to the normal Point-to-Point (P2P) communication.
Starting Page	1
Ending Page	6
File Size	1517710
Page Count	6
File Format	PDF
ISBN	9781467344029
ISSN	21569711
e-ISBN	9781467344043
e-ISBN	9781467344036
DOI	10.1109/WD.2012.6402829
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-21
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase shift keying interference alignment D2D throughput enhancement frequency reuse clustering Telecommunications grouping
Content Type	Text
Resource Type	Article

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