Recently, the wireless communication requires robust and spectrally efficient communication techniques for fading channel. Thus, for reliable communication, this paper proposes the enhanced adaptive modulation coding in the cooperative communication. The proposed scheme uses modulation coding according to the channel state. When the channel can be estimated and this estimate sent back to the tr...

Cooperative communication can improve communication quality in wireless communication networks through strategic relay selection. However, wireless cooperative communication networks are vulnerable to the attacks initiated on relays. Although applying authentication protocols can secure cooperative communication when the selected relay is malicious, better system throughput could be obtained wi...

Cooperative communication has been proposed to improve the disadvantages of the multiple-input multiple-output (MIMO) technique without using extra multiple antennas. In an orthogonal frequency division multiple access (OFDMA) system, a cooperative communication that each user shares their allocated sub-channels instead of the MIMO system has been proposed to improve the throughput. But the coo...

Effect of multipath fading can decrease the performance of wireless communication systems. The multiinput multi-output (MIMO) technique, which uses multiple antennas, often used to overcome multipath fading. This technique is one of the diversity techniques. Some wireless devices have limitation about the size, cost, and hardware complexity, so there can not implement a multiple antenna. Then, ...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract -The concept of cooperative communication has been proposed to improve link capacity, transmission reliability, network coverage and cooperative transmission ranges in multiuser wireless communication networks. Cooperative communication allows mult...

Cooperative communication becomes a popular area of research due to its strength and wide application scope in wireless networking and communications. This technique improves the communication performance largely in capacity enhancement, energy-efficiency, timeliness and contention. Power allocation plays an important role in the cooperative communication paradigm to get the desired performance...

Cooperative communication is a novel class of wireless communication technique which wireless nodes help each other relay information to the intended destination. Orthogonal frequency division multiplexing (OFDM) has become a popular technique for the high data rate and performance. The integration of OFDM and cooperative communication in next generation wireless leads to the design of an effic...

Relay selection schemes for cooperative communications to achieve full cooperative diversity gains while maintaining spectral and energy efficiency have been extensively studied in recent research. These schemes select only the best relay from multiple relaying candidates to cooperate with a communication link. In this paper, we review recently proposed cooperative communication protocols which...