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The channel access mechanisms are mostly CSMA/CA based contention access in wireless networks. Collisions creates additional exponential delays in the network. Channel access delays depends on throughput of each node, node density and number of nodes in the network and transmission power.  \item \textbf{Aggregation and queuing delays at intermediate nodes}\\  Aggregation and compression in adhoc networks is used to reduce the redundancy of the messages thereby reducing the channel access delays. Aggregation and compression function of throughput and protocols at intermediate nodes can lead to large delays due to processing delays before transmission. These three sources of delay are tightly coupled and should be optimized considering all the above factors. The delay experienced by a message due to network throughput, node density, silent relay nodes and transmission power is analysed using simple models to understand trade-off among them in this paper. As a result, understanding the relationship between delay and the network parameters is an important first step in providing delay differentiation.  \end{enumerate} \begin{equation}  E[d_{t}]={Le^{-\Lambda\pi f^{2}}\over p \ast r}[e^{{\Lambda\pi f^{2}\over 1-{{\rm p}\lambda D\over 7}}}-1]  \end{equation}