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Wireless and mobile network performance evaluation

This special issue is intended to collect state-of-the-art research works that include a set of concepts for wireless networking. This issue also presents the objective of enabling access to future trends and directions in the scope of wireless networking and communication, covering wireless sensor networks (WSN), wireless multimedia, and peer-to-peer (P2P) networking. Five articles have been chosen using a strict selective process; all articles have been thoroughly reviewed by highly qualified anonymous referees. The articles cover a variety of important and challenging topics in the areas of wireless communication and mobile networking [1–4]. With the increasing demand for video streaming over mobile networks, we are witnessing a growing interest in designing new three-dimensional (3D) streaming protocols for mobile ad hoc networks [5, 6]. Although a great amount of work [5, 6] has been dedicated to video streaming or real-time streaming, a few studies have concentrated on 3D streaming over mobile devices [7, 8]. In the first paper of this special issue, H. Maamar et al. [9] present an efficient multihop supplying partner protocol, coupled with an original content delivery technique for mobile ad hoc network-based 3D streaming systems. The proposed protocol successfully manages to determine the potential sources that hold the relevant 3D data while overcoming the limitations of wireless medium. The next two papers are motivated by the problem of efficient energy consumption and collecting data from WSN [1, 2, 10, 11]. C. M. Angelopoulos et al. [12] propose a novel random walk for WSN, which they refer to as ‘γ-stretched random walk’, coupled with an original scheme that favors visiting distant neighbors of the current node in order to further reduce any potential nodes overlap of potential nodes, while extending WSN coverage time. Meanwhile, S. Clement et al. [13] present a novel energy harvesting model to extend WSN lifetime. The proposed model has been validated against a real and fully functional prototype, and encouraging results have been obtained. The next two papers deal with the design and use of efficient data structures for mobile P2P networks [14] and WSN. H. Boumerzoug et al. [15] propose the use the AVL tree and elliptic curve cryptography to design an efficient lightweight key management scheme for WSN. Y. Feng et al. [16] further explore error-resilient routing and load balancing strategies that can be employed in the hierarchically distributed tree, in order to better support multidimensional range queries in the mobile P2P overlay network.