Conference Paper

A Transmission Power Control MAC Protocol for Wireless Sensor Networks.

DOI: 10.1109/ICN.2007.12 Conference: Sixth International Conference on Networking (ICN 2007), 22-28 April 2007, Sainte-Luce, Martinique, France
Source: DBLP

ABSTRACT Wireless sensor networks have been widely used in many important fields. Medium Access Control (MAC) protocols have a significant effect on the function and performance of sensor networks. At present, most MAC protocols use the same transmission power when sensor nodes send packets. However, the deployment of the sensor nodes is asymmetrical in wireless sensor networks, which will bring more energy consumption and unnecessary collisions. By jointing the MAC layer and physical layer of the senor nodes, and based on Sensor MAC (SMAC) [1] protocol, we propose a transmission power control MAC protocol in wireless sensor networks (transmission Power control in SMAC, PSMAQ. The simulation results show that, compared with the SMAC protocol, our protocol has improved a lot in the delay of packets, reception rate, energy consumption and throughput of the networks.

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The adoption of wireless sensor networks by applications that require complex operations, ranging from health care to industrial monitoring, has brought forward a new challenge of fulfilling the quality of service (QoS) requirements of these applications. However, providing QoS support is a challenging issue due to highly resource constrained nature of sensor nodes, unreliable wireless links and harsh operation environments. In this paper, we focus on the QoS support at the MAC layer which forms the basis of communication stack and has the ability to tune key QoS-specific parameters, such as duty cycle of the sensor devices. We explore QoS challenges and perspectives for wireless sensor networks, survey the QoS mechanisms and classify the state of the art QoS-aware MAC protocols together with discussing their advantages and disadvantages. According to this survey, we observe that instead of providing deterministic QoS guarantees, majority of the protocols follow a service differentiation approach by classifying the data packets according to their type (or classes) and packets from different classes are treated according to their requirements by tuning the associated network parameters at the MAC layer. Design tradeoffs and open research issues are also investigated to point out the further possible research directions in the field of QoS provisioning in wireless sensor networks at the MAC layer.
    Computer Networks. 01/2011; 55:1982-2004.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Wireless sensor networks (WSN) have been used in many important fields such as target detection and tracking, environmental monitoring, industrial process monitoring and tactical systems. As nodes in wireless sensor networks typically operate unattended with a limited power source, energy efficient operations of the nodes are very important. Although energy conservation in communication can be performed at different layers of the TCP/IP protocol suite, energy conservation at MAC layer is found to be the most effective one due to its ability to control the radio directly. Therefore, to ensure a long-lived network of wireless communicating sensors, we are in need of a MAC protocol that is able to improve energy efficiency by maximizing sleep duration, minimizing idle listening and overhearing, and eliminating hidden terminal problem or collision of packets. In this paper, we investigated the available energy-efficient MAC protocols for wireless sensor networks and provide a fair comparison based on certain metrics.
    International Journal of Scientific and Engineering Research. 05/2013; 4(5):1859-1879.
  • [Show abstract] [Hide abstract]
    ABSTRACT: To design energy efficient Medium Access Control (MAC) protocol for maximizing the network lifetime in Wireless Sensor Network (WSN), is evolving as a challenging portal in research area. The overall radio energy inherently depends on network workload as well as the radio characteristics. Therefore, we have proposed a Dynamic Power Control MAC (DPCMAC) protocol which supports variable power level transmission of packets according to data rate of sources. Our novel approach minimizes the aggregate energy consumption in all power states according to the network traffic. Moreover in our protocol, we calculate the desired power level for the transmission of packets for two types of scenarios: low and high network workload. The protocol is simulated for the variable size of networks and its performance is analyzed on the basis of success rate and energy consumption. The simulation results show that our protocol outperforms the existing Sensor MAC (SMAC) protocol.

Full-text (2 Sources)

Available from
May 22, 2014