Broadcast, also called Byzantine Agreement, is a multi-party computation primitive where a dealer sends his input value to a group of players. All players must agree on the same output value, even if a part of these players is corrupted by an adversary. Furthermore, when the dealer is not corrupted, the output value of the correct players must be the input value of the dealer. It has been prove...

Emerging system-area networks provide a variety of features that can dramatically reduce network communication overhead. Such features include reduced latency, protected remote memory access, cheap broadcast, and ordering guarantees. In this paper, we evaluate the impact of these features on the implementation of Software Distributed Shared Memory (SDSM), and on the Cashmere system in particula...

IP Broadcast over ATM Networks Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract T...

This document describes an architecture for secure service replication in an asynchronous network like the Internet, where a malicious adversary may corrupt some servers and control the network. The underlying protocols for Byzantine agreement and for atomic broadcast rely on recent developments in threshold cryptography. These assumptions are discussed in detail and compared to related work fr...

In data broadcast environments, the limited bandwidth of the upstream communication channel from the mobile clients to the server bars the application of conventional concurrency control protocols. In this paper, we propose a new variant of the optimistic concur-rency control protocol that is suitable for the broadcast environments. In this protocol, read-only mobile transactions can be process...

The U.S. Department of Homeland Security initiated the Commercial Mobile Alert System (CMAS) to inform the general public of emergencies. CMAS utilizes the commercial telecommunications infrastructure to broadcast emergency alert text messages to mobile users in an area affected by an emergency. Because CMAS uses cell broadcast service, the smallest area that CMAS can broadcast messages is a ce...

The broadcast-based data dissemination in wireless environments poses new challenging issues on data consistency of transaction processing. In this paper, we first adapt the optimistic concurrency control with forward validation to the broadcast environments. The adapted protocol gives autonomy between the mobile clients and the server such that the mobile clients can read consistent data off t...

Broadcast is an important operation in Cognitive Radio Networks (CRNs). How to achieve broadcast in an energy-efficient way is important since users in CRNs are usually battery-powered. Existing single-channel broadcast mechanisms are not suitable for CRNs because multiple channels can be used in a CRN. Most existing multi-channel broadcast schemes rely on a common control channel (CCC) to supp...

Observing that it is impractical to use traditional methods to control concurrency in broadcast-based asymmetric communication environment, we introduce a concurrency control protocol designed for broadcast-based transaction processing called STUBcast (Server Timestamp and Update Broadcast Supported Concurrency). STUBcast supports two new correctness criteria proposed in this paper Single Seria...

Broadcast protocols play a vital role in building services and applications for multihop, mobile, wireless ad hoc networks (MANET). This paper describes the design, implementation and evaluation of a new broadcast protocol for a multihop, mobile wireless ad hoc network that provides significantly better performance than the currently existing protocols. In particular, this protocol provides low...