Therefore, one relay antenna is selected to transmit the network-coded signal according to the max-min singular value method.
If two paths are selected to transmit data as Fig. 1 a, the communication may be interrupted by PUs' arrivals.
The role of the SC matrices is to determine how the constellation symbols are weighted and which antenna combination is selected to transmit the HR-DSM codewords.
Node v3 covers the maximum number of nodes in U, and therefore, it is first selected to transmit the message to v7, v8, and v9.
This is due to the fact that two SUs are selected to transmit its own packets and relay the PU's packets in the DPC-cooperation scheme.
Remaining battery power of each node: If it is less than a predetermined threshold value, then the path cannot be selected to transmit packets.
As a certain number of nodes are selected to transmit results to the gateway, the network might consume energy differently depending on the network topology and the number of information transmitting nodes.
The energy information of a path should be displayed: 1) Remaining battery power of each node: If it is less than a predetermined threshold value, then the path cannot be selected to transmit packets.
According to the generalized order user scheduling, the source with the (N_{1}^{text {th}}) best (phantom {dot {i}!}gamma _{textsf {U}_{k},textsf {R}_{1}}) or equivalently, the (N_{1}^{text {th}}) largest (|h_{k,textsf {r}_{1}}|^{2}phantom {dot {i}!}) among the other sources is selected to transmit its message to R1 in the first communication phase.
Those channels whose theoretical BER are approaching to 0, in other words, whose channel capacities are approaching to 1, are defined as good channels and will be selected to transmit data since the lower the theoretical BER means a better distribution of channel capacity.
Knots on the right side are the split channels through this three-step polarization, of which the green ones are those good channels selected to transmit data since the lower the Bhattacharyya parameter, the higher the channel capacity they have gained.
