Optimal Broadcast with Partial Knowledge

Baruch Awerbuch, Israel Cidon, Shay Kutten, Yishay Mansour, David Peleg

Abstract: This work is concerned with the problem of broadcasting a large message efficiently when each processor has partial prior knowledge about the contents of the broadcast message. The partial information held by the processors might be out of date or otherwise erroneous, and consequently, different processors may hold conflicting information. Tight bounds are established for broadcast under such conditions, and applications of the broadcast protocol to other distributed computing problems are discussed.