Priority-Based CCA Periods for Efficient and Reliable Communications in Wireless Sensor Networks

Khanafer, Mounib; Guennoun, Mouhcine; Mouftah, Hussein T.
February 2012
Wireless Sensor Network;Feb2012, Vol. 4 Issue 2, p45
Academic Journal
The IEEE 802.15.4 standard utilizes the CSMA-CA mechanism to control nodes' access to the shared wireless communication medium. CSMA-CA implements the Binary Exponential Backoff (BEB) algorithm by which a node refrains from sending any packet before the expiry of its backoff period. After that, the node is required to sense the medium for two successive time slots to assert that the medium is clear from any ongoing transmissions (this is referred to as Clear Channel Assessment (CCA)). Upon finding the medium busy, the node doubles its backoff period and repeats that process. While effective in reducing the likelihood of collisions, this approach takes no measures to preserve the priorities among the nodes contending to access the medium. In this paper we propose the Priority-Based BEB (PB-BEB) algorithm in which we enhance BEB such that nodes' priority is preserved. We provide a simulation study to examine the performance of PB-BEB. Our simulations show that the latter not only outperforms BEB in terms of fairness, but also show promising results in terms other parameters like channel utilization, reliability, and power conservation.


Related Articles

  • Efficient Data Reporting Protocol for Wireless Sensor Networks. Chauhan, Siddhartha; Awasthi, Lalit Kumar // International Journal of Advanced Networking & Applications;Mar/Apr2012, Vol. 3 Issue 5, p1302 

    Wireless sensor networks (WSNs) are used for collection of data from the area of interest. WSNs deployment, application requirement and nature of phenomena have an effect on the generation of data. The data generated can be redundant and injection of redundant data into the network reduces the...

  • A Survey of Transport Layer Protocols for Wireless Sensor Networks. Zafar, Saima // International Journal of Computer Applications;Nov2011, Vol. 33, p44 

    The reliability of data transfer is vital for commercial and enterprise applications of Wireless Sensor Networks (WSN). Likewise, mission-oriented and critical military applications of these networks demand dependable and timely data transport. This reliability is required for in-bound data,...

  • New Approach Layered Architecture based Clustering for Prolong Life of Wireless Sensor Network (WSN). Ram, Babu; Chand, Narottam; Gupta, Prateek; Chauhan, Siddhartha // International Journal of Computer Applications;Feb2011, Vol. 15, p53 

    The article discusses the role of architecture clustering for prolong life of wireless sensor networks (WSN). It states that sensor networks are capable of environmental monitoring such as temperature, humidity and lighting and is it can be distributed to get useful information. It mentions that...

  • Self-Localized Packet Forwarding in Wireless Sensor Networks. Tarun Dubey; O. P. Sahu // Journal of Information Processing Systems;Sep2013, Vol. 9 Issue 3, p477 

    Wireless Sensor Networks (WSNs) are comprised of sensor nodes that forward data in the shape of packets inside a network. Proficient packet forwarding is a prerequisite in sensor networks since many tasks in the network, together with redundancy evaluation and localization, depend upon the...

  • In-Network Processing of Joins in Wireless Sensor Networks. Hyunchul Kang // Sensors (14248220);Mar2013, Vol. 13 Issue 3, p3358 

    The join or correlated filtering of sensor readings is one of the fundamental query operations in wireless sensor networks (WSNs). Although the join in centralized or distributed databases is a well-researched problem, join processing in WSNs has quite different characteristics and is much more...

  • Coded Cooperation for Multiway Relaying in Wireless Sensor Networks. Zhongwei Si; Junyang Ma; Thobaben, Ragnar // Sensors (14248220);Jul2015, Vol. 15 Issue 7, p15265 

    Wireless sensor networks have been considered as an enabling technology for constructing smart cities. One important feature of wireless sensor networks is that the sensor nodes collaborate in some manner for communications. In this manuscript, we focus on the model of multiway relaying with...

  • ANCAEE: A Novel Clustering Algorithm for Energy Efficiency in Wireless Sensor Networks. Abidoye, Ademola P.; Azeez, Nureni A.; Adesina, Ademola O.; Agbele, Kehinde K. // Wireless Sensor Network;Sep2011, Vol. 3 Issue 9, p307 

    One of the major constraints of wireless sensor networks is limited energy available to sensor nodes because of the small size of the batteries they use as source of power. Clustering is one of the routing techniques that have been using to minimize sensor nodes' energy consumption during...

  • Design, Analysis and Implementation of Energy-efficient Broadcast MAC Protocols for Wireless Sensor Networks. Young-myoung Kang; Sangsoon Lim; Joon Yoo; Chong-kwon Kim // KSII Transactions on Internet & Information Systems;Jun2011, Vol. 5 Issue 6, p1113 

    The Multiuser Eigenmode Transmission (MET) has generated significant interests in literature due to its optimal performance in linear precoding systems. The MET can simultaneously transmit several spatial multiplexing eigenmodes to multiple users which significantly enhance the system...

  • An Energy Efficient Congestion control Technique for Wireless Sensor Networks. Joy, A. Shakeela; Muthuselvi, M.; Kavitha, V. // International Journal of Computer Applications;6/15/2012, Vol. 48, p12 

    WSN are distributed networks with small, light weight wireless sensor nodes. These sensor nodes cooperatively monitor the environment to measure the physical parameter such as temperature, pressure etc. It is data centric. When sensor nodes detect an event, it become active in collecting and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics