Tree-Based Broadcasting in Multihop Radio Networks
IEEE Transactions on Computers
Knowledge and common knowledge in a distributed environment
Journal of the ACM (JACM)
A lower bound for radio broadcast
Journal of Computer and System Sciences
Journal of Computer and System Sciences
An $\Omega(D\log (N/D))$ Lower Bound for Broadcast in Radio Networks
SIAM Journal on Computing
Selective families, superimposed codes, and broadcasting on unknown radio networks
SODA '01 Proceedings of the twelfth annual ACM-SIAM symposium on Discrete algorithms
Distributed Algorithms
The Wakeup Problem in Synchronous Broadcast Systems
SIAM Journal on Discrete Mathematics
Probabilistic Algorithms for the Wakeup Problem in Single-Hop Radio Networks
ISAAC '02 Proceedings of the 13th International Symposium on Algorithms and Computation
Centralized broadcast in multihop radio networks
Journal of Algorithms
Fast broadcasting and gossiping in radio networks
FOCS '00 Proceedings of the 41st Annual Symposium on Foundations of Computer Science
Broadcasting Algorithms in Radio Networks with Unknown Topology
FOCS '03 Proceedings of the 44th Annual IEEE Symposium on Foundations of Computer Science
Deterministic broadcasting in ad hoc radio networks
Distributed Computing
The wake-up problem in multi-hop radio networks
SODA '04 Proceedings of the fifteenth annual ACM-SIAM symposium on Discrete algorithms
A better wake-up in radio networks
Proceedings of the twenty-third annual ACM symposium on Principles of distributed computing
Lower bounds for the broadcast problem in mobile radio networks
Distributed Computing
Improved schedule for radio broadcast
SODA '05 Proceedings of the sixteenth annual ACM-SIAM symposium on Discrete algorithms
Faster communication in known topology radio networks
Proceedings of the twenty-fourth annual ACM symposium on Principles of distributed computing
Broadcasting in undirected ad hoc radio networks
Distributed Computing - Special issue: PODC 02
Theoretical Computer Science - Foundations of software science and computation structures
Broadcasting in geometric radio networks
Journal of Discrete Algorithms
Acknowledged broadcasting and gossiping in ad hoc radio networks
Theoretical Computer Science
Broadcasting in udg radio networks with unknown topology
Proceedings of the twenty-sixth annual ACM symposium on Principles of distributed computing
Distributed broadcast in unknown radio networks
Proceedings of the nineteenth annual ACM-SIAM symposium on Discrete algorithms
Consensus and mutual exclusion in a multiple access channel
DISC'09 Proceedings of the 23rd international conference on Distributed computing
Round complexity of leader election and gossiping in bidirectional radio networks
Information Processing Letters
Information dissemination in unknown radio networks with large labels
Theoretical Computer Science
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We consider ad hoc radio networks in which each node knows only its own identity but is unaware of the topology of the network, or of any bound on its size or diameter. Acknowledged broadcasting (AB) is a communication task consisting in transmitting a message from a distinguished source to all other nodes of the network and making this fact common knowledge among all nodes. To do this, the underlying directed graph must be strongly connected. Working in a model allowing all nodes to transmit spontaneously even before getting the source message, Chlebus et al. [B. Chlebus, L. Ga@?sieniec, A. Gibbons, A. Pelc, W. Rytter, Deterministic broadcasting in unknown radio networks, Distrib. Comput. 15 (2002) 27-38] proved that AB is impossible, if collision detection is not available, and gave an AB algorithm using collision detection that works in time O(nD) where n is the number of nodes and D is the eccentricity of the source. Uchida et al. [J. Uchida, W. Chen, K. Wada, Acknowledged broadcasting and gossiping in ad hoc radio networks, Theoret. Comput. Sci. 377 (2007) 43-54] showed an AB algorithm without collision detection working in time O(n^4^/^3log^1^0^/^3n) for all strongly connected networks of size at least 2. In particular, it follows that the impossibility result from [B. Chlebus, L. Ga@?sieniec, A. Gibbons, A. Pelc, W. Rytter, Deterministic broadcasting in unknown radio networks, Distrib. Comput. 15 (2002) 27-38] is really caused by the singleton network for which AB amounts to realize that the source is alone. We improve those two results by presenting two generic AB algorithms using a broadcasting algorithm without acknowledgement, as a procedure. For a large class of broadcasting algorithms the resulting AB algorithm has the same time complexity. Using the currently best known broadcasting algorithms, we obtain an AB algorithm with collision detection working in time O(min{nlog^2D,nlognloglogn}), for arbitrary strongly connected networks, and an AB algorithm without collision detection working in time O(nlognloglogn) for all strongly connected networks of size n=2. Moreover, we show that in the model in which only nodes that already got the source message can transmit, AB is infeasible in a strong sense: for any AB algorithm there exists an infinite family of networks for which this algorithm is incorrect.