For Cooperative Diversity CD system please talk about its po

For Cooperative Diversity (CD) system, please talk about its potential disadvantages.

Solution

Potential disadvantages of cooperative diversity system

1. Compromise on security :Since different users share data, there is a threat to the privacy and security of a user\'s data.

2. Limitation due to the non availability of cooperative nodes : To communicate data, neighbouring nodes called cooperative node provide assistance. But what if there are less number of nodes or maybe no nodes at all? This is a potential disadvantage.

3. Time delay while using Time Division Multiple Access(TDMA) scheme : Since TDMA requires that the same frequency channel is to be shared by many and so transmission takes place one after the other. So, if there are M relays then M+1 time slots are required to send signal.