Abstract
In this paper, we introduce a mobility aware and energy efficient congestion control protocol “time sharing energy efficient congestion control (TSEEC) for mobile wireless sensor network.” TSEEC is based on hybrid scheme of time division multiple access protocol (TDMA) and statistical time division multiple access (STDMA) protocol that inform the sensor nodes when to wake up and to go to listening state so as to save energy. This management helps in minimizing congestion and improving network energy conservation through its load based allocation (LBA) and time allocation leister (TAL) techniques. LBA is typically based on STDMA that uses sensor node information for assignment of dynamic timeslots to the sensor, nodes, whereas TAL targets the mobility management of sensor nodes that further comprises three main strategies of cluster member node that is, joining cluster, leaving cluster, and absence of data/redundant data with extricated time allocation (ETA), shift back time allocation (SBTA), and eScaped Time Allocation (STA) subtechniques. In addition, TSEEC protocol introduces the mobility pattern to control the mobile sensor node (MSN) movement to enable the protocol to effectively adapt itself to change the traffic environments and mobility. Mathematical analysis and NS2 simulation show that TSEEC outperforms SMAC in terms of energy consumption and packet deliver ratio. Furthermore, a comparative analysis of TSEEC with various well-known related MAC protocols is also given.
Highlights
Wireless sensor network consists of autonomous sensors and uses a shared medium for monitoring physical environment like temperature, sound, pressure, or vibration and shares this data with a base station
There are quite a few classes of Mobile WSN (MWSN) that can be plainly categorized into the following classes: (i) highly mobile; in this scenario, devices can move at a velocity such as human, cars, and airplanes, (ii) mostly static; in this scenario, the devices can move at a very low velocity such as moving robots, and (iii) hybrid, in this scenario, we have both classes, that is, highly mobile and mostly static, such as moving cars having sensors installed in it [2]
In (10), R is the number of packets which are received by a node and N is the number of data packets which are propagated
Summary
Wireless sensor network consists of autonomous sensors and uses a shared medium for monitoring physical environment like temperature, sound, pressure, or vibration and shares this data with a base station. International Journal of Distributed Sensor Networks on MWSN aims to minimize the energy consumption ratio. In order to minimize the energy consumption ratio, an efficient MAC protocol that allocates medium resources shared by different sensor node in MWSN is required. In this paper, a protocol is designed based on STDMA that improves performance in both NLC and LLC and results in energy efficiency of the network. The CH uses MSN feedback and uses a modified TDMA technique of timeslots allocation to its MSNs in specific cluster This innovative statistical technique in TDMA provides energy efficiency to network and minimizes congestion at sink node in MWSN.
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