Approximation Algorithms for Data Broadcast in Wireless Networks
Citations Over TimeTop 10% of 2011 papers
Abstract
Broadcasting is a fundamental operation in wireless networks and plays an important role in the communication protocol design. In multihop wireless networks, however, interference at a node due to simultaneous transmissions from its neighbors makes it nontrivial to design a minimum-latency broadcast algorithm, which is known to be NP-complete. We present a simple 12-approximation algorithm for the one-to-all broadcast problem that improves all previously known guarantees for this problem. We then consider the all-to-all broadcast problem where each node sends its own message to all other nodes. For the all-to-all broadcast problem, we present two algorithms with approximation ratios of 20 and 34, improving the best result available in the literature. Finally, we report experimental evaluation of our algorithms. Our studies indicate that our algorithms perform much better in practice than the worst-case guarantees provided in the theoretical analysis and achieve up to 37 percent performance improvement over existing schemes.
Related Papers
- → Reliable broadcast protocols in unreliable networks(1986)49 cited
- Reliable Local Broadcast in a Wireless Network Prone to Byzantine Failures.(2007)
- → "A reliable broadcast protocol"(1982)1 cited
- A Reliable Broadcast Protocol.(1983)
- Efficient Data Broadcast Using One-To-All andAll-To-All Broadcast Algorithm In WirelessNetworks(2014)