Dynamic allocation of slot using MAC protocol

With the emergence of fast growing communication technology, the necessity of conserving energy has been paramount, particularly in the field of wireless sensor network fields that are enabled with sensor devices that have limited energy, because it is impossible to replace and recharge the battery in the nodes. This paper introduces a novel dynamic allocation of slot to the node (DASN) mechanism at medium access control (MAC), which is the sub-layer of the Data link layer in the OSI model. DASN is proposed in order to avoid congestion, improve energy efficiency, and prolong the life of the network as less energy consumption leads to larger life of the battery on which network sensing devices work. This paper proposes the improved packet scheduling mechanism algorithm (IPSM) for DASN. The IPSM has better throughput compared to other algorithms and works on the basis of a greedy technique in which the maximum number of waiting nodes are allocated to the slots in the given time frame. Our proposed IPSM algorithm for DASN is implemented using the MATLAB platform. Experimental results show that IPSM saves energy and utilizes the channel to maximum capacity. IPSM has better throughput compared to other algorithms.