Thus, the error rate can be lowered at the expense of decreasing throughput and increasing mean delay and jitter.
In [11], the channel noise degrades the performance of both throughput and delay; thus, a predictive approach that considers the collision probability, throughput, and mean delay of BW REQs under various traffic and channel conditions was introduced.
In other words, one measure of throughput is, where is the mean delay across all receivers.
Results show that the performance of uplink throughput is promoted, and the mean delay of uplink traffic is decreased.
Sharma [10] identifies throughput optimal and mean delay optimal energy management policies and shows a greedy policy to be optimal in low SNR regime with infinite battery capacity.
Figure 8 UL throughput achieved by priority scheme (a) and QDRA (b). Figure 9 UL mean delay achieved by priority scheme (a) and QDRA (b). Figure 10 DL throughput achieved by priority scheme (a) and QDRA (b). Figure 11 DL mean delay achieved by priority scheme (a) and QDRA (b).
On the other hand, if the MS is overprovisioned, the traffic arrival rate is below the maximum achievable throughput, the queue is stable, and the mean delay remains bounded.
Unlike traditional data communication, where system performance is largely measured in terms of the average overall throughput and loss rate, real-time communications may require QoS metrics expressed in terms of the mean delay or its variance (jitter).
They also exploited throughput optimization, i.e., to obtain energy management policies for the largest possible data rate and the minimal mean delay in the queue.
Table 6 Performance comparison in partial mobility scenario AODV DXFP Mean delay (ms) 5.213 2.839 Standard deviation (ms) 43.445 19.375 Signalling 54.84 5.37 Periodic signalling ✗ 203 Route Discovery 52 1 Throughput 97.44 100.00.
