In a wireless environment, the bandwidth of the channels and the energy of the portable devices are limited. Data broadcast has become an excellent method for efficient data dissemination. In this paper, the problem for generating a broadcast program of a set of data items with the associated access frequencies on multiple channels is explored. In our approach, we consider allocating index info...

The introduction of hybrid systems, including broadcast as well as mobile telecom, for 4G is motivated. A current EU project, MCP, developing and specifying network and receiver architectures for hybrid networks is described. Reasons to use DVB-T for unicast services are explained. A way to increase spectrum efficiency by using broadcast functionality in connection with mobile Internet access i...

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...

The stability of Bernstein’s characterization Gaussian distributions is extended to vectors by utilizing characteristic functions. Stability used develop a soft doubling argument that establishes the optimality for certain communications channels with additive noise, including two-receiver broadcast channels. One novelty does not require existence achieve capacity.

Simultaneous wireless information and power transfer (SWIPT) is anticipated to have great applications in fifthgeneration (5G) communication systems and the Internet-ofThings (IoT). In this paper, we address the energy efficiency (EE) optimization problem for SWIPT multiple-input multiple-output broadcast channel (MIMO-BC) with time-switching (TS) receiver design. Our aim is to maximize the EE ...

This paper is concerned with the issue of building efficient and flexible data broadcast programs for a multiple physical channel environment. The goal of our work has been twofold: (a) to minimize the cost of building the broadcast program and (b) to minimize the average access latency for data requests of mobile clients. To achieve both goals, a highly flexible scheduler, called FlexSched, is...

In this paper, we investigate the broadcasting scheduling over multiple channels for the case where a mobile client might need more than one page (i.e., a query set of data pages). Ke has proposed the SNV (Set-based version-Non-overlap Version) strategy for query set broadcast scheduling in multiple channels. In the SNV strategy, the data pages of the same query set are put together as much as ...

In this paper, we investigate problems of communication over physically degraded, state-dependent broadcast channels (BCs) with cooperating decoders. Two different setups are considered and their capacity regions are characterized. First, we study a setting in which one decoder can use a finite capacity link to send the other decoder information regarding the messages or the channel states. In ...