Mohammad AlOtaibi

An Efficient Routing Approach over Mobile Wireless Ad-Hoc Sensor Networks

In this paper, we efficiently adapt the prominent Ad Hoc On-Demand Distance Vector (AODV) routing protocol with a reactive Local Link Repair, AODV-LR, for effective deployment in restricted power-budget and bandwidth mobile ad hoc sensor networks (MASNET). We introduce a better replacement mechanism to the local repair phase of the AODV. Our new approach is a preemptive, self-repairing AODV (called AODV-PSR) scheme that is able to find an alternative link to a failing link. The new preemptive protocol achieves better performance than the ADOV-LR, due to its avoidance of packet buffering delay and excess use of control messages during link repair. Experimental results show a much lower obtained packet delay, a higher packet delivery ratio, and lower control message overhead. Hence, our mechanism is amenable to deployment in areas of restricted power-budget and bandwidth, such as a MASNET domain.

Enhancing AODV routing protocol over mobile ad hoc sensor networks

In this paper, we efficiently adapt the prominent Ad hoc On-demand Distance Vector (AODV) routing protocol with a reactive Local Link Repair (AODV-LR) for effective deployment in Mobile Ad hoc Sensor Networks (MASNETs) with restricted power and bandwidth. We introduce two replacement mechanisms to the local repair phase of the AODV. Our new approaches are self-repairing AODV algorithms called Reactive Self-repairing AODV (AODV-RSR) and Pre-emptive Self-repairing AODV (AODV-PSR). These two algorithms are able to find an alternative route to a failing link without depending only on broadcasting Route Request (RREQ) packets. Experimental results show that the new algorithms achieve better performance than the AODV-LR and Self-repair Algorithm (SRAODV) by obtaining lower packet delay, higher packet delivery ratio and lower control message overhead.

Efficient geographic routeless routing protocols with enhanced location update mechanism

In this paper, we introduce and evaluate two efficient controlled routeless routing protocols: Static and Dynamic Channel Width. They combine Location-Aided Routing (LAR) and Received signal strength-Aided Flooding (RAF) protocols for effective deployment in the very challenging domain of Mobile Ad hoc Sensor Networks (MASNETs). Our new approach maintains different controlled routeless geographic routing protocols that construct a virtual broadcasting channel between source nodes and their destinations. Hence with no predefined source-destination route, i.e. routeless, only some of the sensor nodes inside the channel are allowed to contribute in forwarding packets. Promising simulation results show that our protocols are able to outperform RAF, LAR, and Beacon-less routing protocols with respect to energy consumption, packet delivery ratio and end-to-end delay.

Efficient Controlled Routeless Routing Protocol With Fixed Channel's Width for Mobile Ad Hoc Sensor Networks

In this paper, we introduce an efficient Controlled Routeless Routing with Fixed Channel Width protocol (CRRFCW) that combines LAR and RAF protocols for effective deployment in restricted power-budget and bandwidth mobile ad hoc sensor networks (MASNETs). Our protocol is a controlled routeless geographic routing protocol that constructs a virtual broadcasting channel between sensor nodes and their sinks. Only some of the sensor nodes inside the channel are allowed to contribute in forwarding packets. The simulation results show that our protocol outperforms both RAF and LAR protocols in number of retransmission, energy consumption, end-to-end delay and packet delivery ratio. Hence, our protocol is amenable to deployment in areas of restricted power-budget and bandwidth, such as the MASNET domain.

Adaptive Channel Width for MASNET Routeless Routing Protocol

In this paper, we seek the improvement of a newly developed Static Channel Width Routeless Routing (SCWRR) protocol which uses a self-determined Geographical Forwarding MASNET. Even though our previously obtained results are very competitive with peer protocols, we will strive to explore all venues in order to enhance protocol efficiency, one of such venues is to vary the source-destination channel width. The adaptive channel width simulation results show an enhancement in the power budget of about 10% over the static approach. Such enhancement may prove to be critical in some sensor network applications, making our protocol more amenable in the MASNET domain.