This paper scrutinizes the authentication and key agreement protocol adopted by the Universal Mobile Telecommunication System to meet the standards of a fourth-generation network. Lately, communication of multimedia (CoM) has drawn the attention of researchers for the future of secure wireless mobile communication. However, the CoM has not had any defensive mechanism to fulfil the specification...

We study a new approach to provide an efficient VoD service to a large client population in P2P networks. Previous work has suggested to construct a multicast tree to distribute the video to clients. However, a multicast tree usually requires the central server to perform complex algorithms to add new clients to the tree. In this paper, we show how to simplify the algorithm performed by the ser...

The paper studies closed queueing networks containing a server station and k client stations. The server station is an infinite server queueing system, and client stations are single server queueing systems with autonomous service, i.e. every client station serves customers (units) only at random instants generated by strictly stationary and ergodic sequence of random variables. The total numbe...

We design FrodoPIR — a highly configurable, stateful, single-server Private Information Retrieval (PIR) scheme that involves an offline phase is completely client-independent. Coupled with small online overheads, it leads to much smaller amortized financial costs on the server-side than previous approaches. In terms of performance for database 1 million 1KB elements, requires < second respon...

Scaling the number of supported users for Massive MultiUser Games (MMOGs) allows more users to experience its content together. Supporting this capability needs consider the chain of all components that constitute the system between the client software of any two users. A large body of research has been created over the last decades on the problem of dividing the resultant workload of a MMOG to...