Opportunistic real-time routing in multi-hop wireless sensor networks

Wireless sensor networks (WSNs) are subject to significant resource constraints. Particularly, routing protocols for low-rate WSNs suffer from maintaining routing metrics and stable links of paths. Even though opportunistic routing protocols are well-suited to WSNs, they have some weaknesses for supporting real-time data and low power consumption. This paper proposes a new routing protocol called opportunistic real time routing (or ORTR) that guarantees delivery of data under time constraints with efficient power consumption. In order to satisfy time requirements, an area where real-time data must be delivered is defined with effective transmission power and a relay node within the area is selected for the purpose of balancing overall energy levels. We compare existing routing protocols against ORTR through a set of simulation experiments. Our simulation results illustrate that ORTR provides guaranteed real-time service with optimal transmission power without degrading the energy balance.

[1]  Yaling Yang,et al.  Distributed Optimal Contention Window Control for Elastic Traffic in Single-Cell Wireless LANs , 2007, IEEE/ACM Transactions on Networking.

[2]  Shu Du,et al.  RMAC: A Routing-Enhanced Duty-Cycle MAC Protocol for Wireless Sensor Networks , 2007, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications.

[3]  Robin Kravets,et al.  Distributed optimal contention window control for elastic traffic in wireless LANs , 2005, Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies..

[4]  Leonard Kleinrock,et al.  Optimal Transmission Ranges for Randomly Distributed Packet Radio Terminals , 1984, IEEE Trans. Commun..

[5]  Robert Tappan Morris,et al.  ExOR: opportunistic multi-hop routing for wireless networks , 2005, SIGCOMM '05.

[6]  JAMAL N. AL-KARAKI,et al.  Routing techniques in wireless sensor networks: a survey , 2004, IEEE Wireless Communications.

[7]  Robert Tappan Morris,et al.  Performance of multihop wireless networks: shortest path is not enough , 2003, CCRV.

[8]  Minyi Guo,et al.  Hole Avoiding in Advance Routing in Wireless Sensor Networks , 2007, 2007 IEEE Wireless Communications and Networking Conference.

[9]  Guoliang Xing,et al.  Real-time Power-Aware Routing in Sensor Networks , 2006, 200614th IEEE International Workshop on Quality of Service.

[10]  Jan M. Rabaey,et al.  Modeling and analysis of opportunistic routing in low traffic scenarios , 2005, Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt'05).

[11]  Li Ying,et al.  An Adaptive Real-Time Routing Scheme for Wireless Sensor Networks , 2007, 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07).

[12]  Chang-Gun Lee,et al.  MMSPEED: multipath Multi-SPEED protocol for QoS guarantee of reliability and. Timeliness in wireless sensor networks , 2006, IEEE Transactions on Mobile Computing.

[13]  Wenjing Lou,et al.  On Throughput Efficiency of Geographic Opportunistic Routing in Multihop Wireless Networks , 2007, Mob. Networks Appl..

[14]  Jan M. Rabaey,et al.  When does opportunistic routing make sense? , 2005, Third IEEE International Conference on Pervasive Computing and Communications Workshops.

[15]  Ingrid Moerman,et al.  Throughput and Delay Analysis of Unslotted IEEE 802.15.4 , 2006, J. Networks.

[16]  H.T. Friis,et al.  A Note on a Simple Transmission Formula , 1946, Proceedings of the IRE.

[17]  Marco Zuniga,et al.  Analyzing the transitional region in low power wireless links , 2004, 2004 First Annual IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks, 2004. IEEE SECON 2004..

[18]  Chenyang Lu,et al.  SPEED: A Real-Time Routing Protocol for Sensor Networks , 2002 .