Atomic broadcast is a powerful communication primitive, which is applied in a natural way in sequentially consistent implementations of various data structures (see 1]). Unfortunately the atomic broadcast algorithm as presented is incorrect. Here some ways of correcting it are analyzed under assumptions of blocking versus nonblocking communication. Two atomic broadcast algorithms are proposed: ...

broadcast digitalization with its enormous benefits to the broadcasting industry will improve the quality of content of programs delivered by television stations. africa has a switchover date of june, 2017. for nigerians to have access to television broadcast once the switch over is completed, they must purchase high definition television sets or the set-up box. the awareness among urban dwelle...

Manure can provide valuable nutrients, especially N, for grass forage, but high NH, volatilization losses from standard surface-broadcast application limits N availability and raises environmental concerns. Eight field trials were conducted to evaluate the emission of NH, from liquid dairy manure, either surface broadcast or applied in narrow surface bands with a trailing-foot implement. Manure...

A series of experiments was carried out at Students Farm, Sindh Agriculture University, Tandojam to evaluate the effect of NPK, micronutrients and N-placement on the growth and yield of sunflower during 2005-2006. The sunflower cv. HO-1 was studied under 7 different NPK levels and placement methods (0-0-0 NPK kg ha, 6030-30 NPK kg ha (N as broadcast), 60-30-30 NPK kg ha (N as fertigation), 90-4...

In this paper different error protection strategies in different protocol layers are discussed, in order to reliably broadcast multimedia data within existing wireless networks. In particular, we investigate the performance of additional Forward Error Correction (FEC) in the physical layer, the Radio Link Control (RLC) layer, and the Realtime Transport Protocol (RTP) layer for Multimedia Broadc...

Inter-Vehicle Communication (IVC) systems are envisioned as the primary means to enable intelligent transportation systems and to increase vehicle traffic safety. Majority of applications envisioned for IVC systems rely on broadcast dissemination of information in the application area. Several broadcast protocols proposed for IVC systems utilize position information to optimize the system perfo...

One of the main challenges of securing broadcast communication is source authentication, or enabling receivers of broadcast data to verify that the received data really originates from the claimed source and was not modified en route. This problem is complicated by mutually untrusted receivers and unreliable communication environments where the sender does not retransmit lost packets. This arti...