Link Adaptive Cooperative Communication with Smart Relays for MIMO-OFDMA
نویسندگان
چکیده
Although multiple-input multiple-output (MIMO) is advantageous on orthogonal frequency division multiple access (OFDMA) system, it may not be possible that practical systems have more than two antennas because of size and cost. Therefore, cooperative communication has been recently proposed as a way to overcome this problem in slow fading wireless environment. However, if cooperative communication system selects relay in bad channel environment between source and relay, the relay has a bad effect on the bit error ratio (BER) performance. Thus, we propose the adaptive cooperative communication technique.
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