Resource Allocation for Licensed/Unlicensed Carrier Aggregation MIMO Systems
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Date
2016
Authors
Tsinos, Christos G.
Foukalas, Fotis
Tsiftsis, Theodoros A.
Journal Title
Journal ISSN
Volume Title
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Abstract
In this paper a novel Carrier Aggregation (CA)
scheme is proposed for downlink MIMO LTE-A Systems. The
proposed approach achieves increased transmission rates by
establishing the communication links via both licensed and
unlicensed bands without generating or experiencing interference
to/from the users of the latter bands. To that end, a rate
optimization problem is defined and solved subject to the previous
zero interference constraints, a total power constraint and a
maximum number of aggregated bands constraint. It turns
out that the previous problem is a Mixed Integer Non Linear
Programming (MINLP) one that requires an exhaustive search
procedure in order to be solved. To tackle this, an optimal low
complexity method is proposed based on the Lagrange dual
decomposition. The performance of the original (MINLP) and
the low-complexity proposed techniques is verified via indicative
simulations
Description
Keywords
Carrier Aggregation, MIMO, LTE-A, Unlicensed Transmission, Interference Nulling, Resource Allocation, Carrier Selection
Citation
Christos G. Tsinos, Fotis Foukalas, Theodoros A. Tsiftsis; 2016; Resource Allocation for Licensed/Unlicensed Carrier Aggregation MIMO Systems; IEEE Wireless Conference and Networking Conference (WCNC 2016) Track 1: PHY and Fundamentals; http://nur.nu.edu.kz/handle/123456789/1688