If routing decision is made on PST alone, then idle nodes in high contention area will also be considered as potential relaying nodes, since their PST will be zero.
Thus, the CESAR mechanism ensures that at a particular time instant k only one group of APs may access idle resources, thereby mitigating the contention problem.
To find this channel set, we have to calculate the probability of winning the contention on a given idle channel i.
This will increase the number of discovered idle channels, which in turn increases the number of contention slots (M) in the contention interval, thus decreasing the transmission time per cycle.
The authors of[16] use an analytical approach to find optimal contention window sizes based on the observed idle slot intervals to achieve utility fairness between AP and wireless stations.
The authors in [17] use an analytical approach to find optimal contention window sizes based on the observed idle slot intervals to achieve utility fairness between AP and wireless stations.
The room is much quieter and most of the conversation takes place in whispers, perhaps because idle chatter is met with disapproving shushes from players still in contention.
Cognitive users can access data channel for transmission after successfully passing through series of phases, such as idle phase (Tidle), parallel sensing phase (Tps), sharing phase (Tshar), and contention phase (Tcont) as shown in Fig. 3.
Hence, in ASARCO, although we rejected the dissent's factual contention that the stock investments there constituted "interim uses of idle funds 'accumulated for the future operation of the taxpayer's business operation,' " we did not dispute the suggestion that had that been so the income would have been apportionable.
Broadly, previous research has broken up the overheads in the traditional protocol stack into four related aspects, namely: (i) compute requirements and contention, (ii) memory contention, (iii) I/O bus contention and (iv) system resources' idle time.
Compared with contention-based MAC protocol, schedule-based MAC protocols can avoid collisions, idle listening, and overhearing very easily.
