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Multiple input multiple output (MIMO) technology appears attractive for indoor visible light communication (VLC) systems as multiple light-emitting diodes (LED) sources are typically deployed for indoor environment. Most of current indoor MIMO VLC systems utilize single user terminal scenario to investigate the performance of the system. However, typical arrangement of a practical indoor environment...
This paper investigates the performance of our recently proposed precoding multiuser (MU) MIMO system in indoor visible light communications (VLC). The transmitted data of decentralized users are transmitted by light-emitting-diode (LED) arrays after precoding in a transmitter, by which the MU interference is eliminated. Thus, the complexity of user terminals could be reduced, which results in the...
Multiple MIMO (Multiple Input Multiple Output) modes are the salient characteristics of 802.11n wireless networks. An efficient MIMO mode switching scheme is highly desirable for rate adaptation, which can optimize combination of MIMO mode and MCS (Modulation Coding Scheme) to achieve the maximum system throughput. In this paper, we have proposed and verified three design guidelines for the MIMO mode...
We investigate the outage performance of multi-antenna cognitive wireless relay networks where source nodes transmit information to their destinations via two hops facilitated by intermediate cognitive nodes able to acquire spectrum holes. In particular, we conduct an outage performance analysis for a decode-and-forward (DF) relaying system under three scenarios which are depending on the spectrum...
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