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Targeting to reduce the traffic accident and improve the traffic efficiency, vehicular network is designed to do message exchange via vehicle to vehicle (V2V) and vehicle to infrastructure (V2I) communications. For V2V communications, orthogonal resources (i.e., time slot) are usually allocated for every vehicle to avoid collisions in V2V communications, which needs complex signaling between vehicles...
In this paper, worst-case robust beamforming to minimize the transmit power with quality of service (QoS) constraint is investigated for wireless relay networks with direct link. To be practical, channel errors are assumed for all the links including source-to-relay, relay-to-destination, and direct source-to-destination links. The signals coming from the relay link and direct link are combined by...
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