Earticle

초록

영어

This paper presents a more efficient method for medium access in a real-time ubiquitous sensor network. To reduce the latency for the delivery of event data from sensor nodes, a fixed-size contention window with a non-uniform probability distribution of transmitting in each slot is selected. Through a simulation using ns-2, a widely used network simulation package, it is shown that the proposed method can reduce the latency considerably as compared to conventional IEEE 802.11 MAC protocols for a sensor network with up to 256 nodes. It is also shown that the proposed MAC scheme realizes a latency similar to that realized by a decentralized CSMA-based MAC protocol for real-time ubiquitous sensor networks that are sensitive to latency.

목차

Abstract
 1. Introduction
 2. Proposed MAC Protocol
 3. Simulation Results
  3.1 Packet Throughput of Proposed DPSMAC Protocol
  3.2 Transmission Delay Time of Proposed DPSMAC Protocol
 4. Conclusion
 References

키워드

저자

• Myungsub Lee [ Department of Computer Technology, Yeungnam College of Science and Technology ]
• Changhyeon Park [ Department of Computer Engineering, Yeungnam University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605