Efficient Resource Discovery in Wireless AdHoc Networks: Contacts Do Help
نویسنده
چکیده
The resource discovery problem poses new challenges in infrastructure-less wireless networks. Due to the highly dynamic nature of these networks and their bandwidth and energy constraints, there is a pressing need for energy-aware communicationefficient resource discovery protocols. This chapter provides an overview of several approaches to resource discovery, discussing their suitability for classes of wireless networks. The approaches discussed in this chapter include flooding-based approaches, hierarchical cluster-based and dominating set schemes, and hybrid loose hierarchy architectures. Furthermore, the chapter provides a detailed case study on the design, evaluation and analysis of an energy-efficient resource discovery protocol based on hybrid loose hierarchy and utilizing the concept of ‘contacts’.
منابع مشابه
An efficient symmetric polynomial-based key establishment protocol for wireless sensor networks
An essential requirement for providing secure services in wireless sensor networks is the ability to establish pairwise keys among sensors. Due to resource constraints on the sensors, the key establishment scheme should not create significant overhead. To date, several key establishment schemes have been proposed. Some of these have appropriate connectivity and resistance against key exposure, ...
متن کاملCARD: A Contact-based Architecture for Resource Discovery in Wireless Ad Hoc Networks
Traditional protocols for routing in ad hoc networks attempt to obtain optimal or shortest paths, and in doing so may incur significant route discovery overhead. Such approaches may be appropriate for routing long-lived transfers where the initial cost of route discovery may be amortized over the life of the connection. For short-lived connections, however, such as resource discovery and small ...
متن کاملEfficient utilization of spectrum bandwidth using Cognitive Radio to improve throughput in wireless adhoc networks
This paper focuses on efficient utilization of spectrum bandwidth to improve throughput in wireless adhoc networks. As the frequency spectrum is a limited resource for wireless communications and as per the next generation requirements the frequency spectrum becomes a scarce resource, and consequently, its efficient use is of the ultimate importance. To meet with the growing demand, network des...
متن کاملResource Discovery in Wireless, Mobile and Ad hoc Grids – Issues and Challenges
Recent advancements in technology and computing environments have extended the scope of classification criteria for traditional grids to include wireless, mobile and ad hoc grids based on the criteria of Accessibility. The realization of the benefits of grids to a larger extent is based on the effective discovery of resources (which could be heterogeneous in nature) that are part of the grid. T...
متن کاملAssessment of DSACC and QPART Algorithms in Ad Hoc Networks
The rapid advancement in wireless over wired has augmented the need for improving theQuality of Service (QoS) over such wireless links. However, the wireless ad hoc networkshave too low bandwidth, and establishing a QoS in these networks is a difficult issue. So,support of quality of service in ad hoc networks is the topical issue among the networkscience researchers. In this research we are go...
متن کامل