Cross‐layer scheduling over a heterogeneous opportunistic emergency‐deployed wireless network

Abstract

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to study the radio resource assignment problem in the context of a heterogeneous ad hoc network, composed of 1EEE802.15.4 sensor devices, their coordinators, mobile terminals conveying vldeo streams, and sinks. This scenario also fits to the paradigm of opportunistic networks. Design/methodology/approach -In such hierarchical heterogeneous opportunistic networks, the focus is on cross-layer scheduling of the video and sensor traffics toward the sink. The scheduling strategy proposed takes into account information coming from both physical and application layers. Evaluations are performed via simulations. Findings -Results show that the proposed cross-layer strategy significantly outperforms the maximum throughput scheduling, used as a benchmark, in case of video traffic, while preseruing the same performance for 802.15.4 traffic. Practical implications -The architecture and the relevant algorithms proposed could be used in realistic emergency-deployed networks composed by the kind of nodes considered in the paper. Originality/value -The novelty introduced is related to the application of a crosslayer design strategy in a very peculiar hierarchical heterogeneous opportunistic ad hoc network. This paper is believed to be the first published combining traditional tratfic sources with sensor generated data flows.

FPGA Implementation of MC-CDMA Wireless Communication System Based on SDR-A Review

“…block diagram of the MC-CDMA system[71] Source: Jaber, et al[36] C. Applications of PR in Wireless CommunicationDelorme, et al[72] offered the flow of partial re-configuration to the NOC using a series of telecommunications 4G. Used versions of the tools are available to achieve Xilinx ISE 9.1.2, Plan Ahead 9.2.3, EDK 9.1.2, only two bits-streams have been created for the channel coder PRM because of the restriction on the scheme's performance NOC IP Block.…”