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In this paper, the cooperation communication with a modified switch-and-examine relay (SER) for the advanced metering infrastructure (AMI) is addressed, where fixed-gain amplify-and-forward (AF) relay is used since it consumes less power of relay processing and results in matched performance as compared to decode-and-forward (DF) relay. With the SER for smart grid cooperative communications, the relay...
Amplify-and-forward cooperative diversity with simple switch-based relay (SSR) selection is addressed. With the SSR selection, dual-hop relaying is not always used for transmissions. Only when the signal-to-noise ratio (SNR) of the source-to-destination (SD) channel is lower than a preset threshold, the relays are tested one-by-one by comparing their SNR with the threshold. If the SD signal is not...
Based on switched relays, an energy-efficient cooperative diversity scheme is addressed and its performance is analyzed. With switched relays, relying is only used when the signal-to-noise ratio (SNR) of the source-to-destination (SD) channel is lower than a preset threshold, and in addition, an activated relay will further process the received source signal only if the transmission over its source-to-relay...
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