sentences:  A Cooperative MIMO transmission involves multiple point-to-point radio links, including links within a virtual array and possibly links between different virtual arrays.The disadvantages of Cooperative MIMO come from the increased system complexity and the large signaling overhead required for supporting device cooperation.The advantages of Cooperative MIMO, on the other hand, are its capability to improve the capacity, cell edge throughput, coverage, and group mobility of a wireless network in a cost-effective manner.