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On combining network coding with duty-cycling in flood-based wireless sensor networks.
| Content Provider | CiteSeerX |
|---|---|
| Author | Ch, Roja Anala, A. Wei Zhang, A. Radu Stoleru, A. Myounggyu Won, A. |
| Abstract | Abstract: Network coding and duty-cycling are two major techniques for saving energy in wireless sensor networks. To the best of our knowledge, the idea to combine these two techniques for even more aggressive energy savings, has not been explored. This is not unusual, since these two techniques achieve energy efficiency through conflicting means, e.g., network coding saves energy by exploiting overhearing (i.e., nodes are awake), whereas duty-cycling saves energy by reducing idle listening (i.e., nodes sleep). In this article, we thoroughly investigate if network coding and duty cycling can be used together for more aggressive energy savings in flood-based wireless sensor networks. Our main idea is to exploit the redundancy sometimes present in flooding applications that use network coding, and put a node to sleep (i.e., duty cycle) when a redundant transmission takes place (i.e., the node has already received and successfully decoded a sequence of network-coded packets). We propose a scheme, called DutyCode, in which a multiple access control (MAC) protocol implements packet streaming and allows the network coding-aware application to decide when a node can sleep. We also present an algorithm for deciding the optimal coding scheme for a node to further reduce energy consumption by minimizing redundant packet transmissions. Finally, we propose an adaptive switching technique between DutyCode and an existing duty-cycling MAC protocol. We investigate our |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Flood-based Wireless Sensor Network Combining Network Aggressive Energy Saving Network Coding Major Technique Energy Consumption Redundant Packet Transmission Duty Cycling Adaptive Switching Technique Node Sleep Duty-cycling Mac Protocol Whereas Duty-cycling Save Energy Idle Listening Duty Cycle Optimal Coding Scheme Energy Efficiency Save Energy Network Coding-aware Application Protocol Implement Wireless Sensor Network Network-coded Packet Redundant Transmission Multiple Access Control Conflicting Mean Main Idea |
| Content Type | Text |
| Resource Type | Article |
