Accession Number : ADA617421


Title :   A Unified Access Model for Interconnecting Heterogeneous Wireless Networks


Descriptive Note : Final rept. May-Aug 2014


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE


Personal Author(s) : Bhat, Saleil ; Dasari, Venkateswara R ; Mishra, Vinod K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a617421.pdf


Report Date : May 2015


Pagination or Media Count : 18


Abstract : Battlefield communication networks consist of various heterogeneous networking technologies. Heterogeneity can create problems of interoperability and challenges in creating a unified network. Two of the challenges in making heterogeneous networks interoperate seamlessly are the existence of disparate Media Access Control (MAC) layers and control plane protocols. A network model that can abstract disparate MAC layers in heterogeneous networks and interconnect them using a unified and centralized connection broker could potentially solve the problems preventing seamless connectivity in heterogeneous networks. The controller can accept signals from a variety of access technologies and convert them to the appropriate form before forwarding. Using C++, we modeled the behavior of a unified access controller for heterogeneous wireless networks in the ns-3 environment. We allowed 2 simulated wireless networks with 2 different access technologies to communicate with one another via a virtual network device acting as the controller. The conversion process was performed using the ns-3 emulated net device model, which can change an ns-3 simulation signal of any particular access technology into a virtual packet and vice versa. Our simulated model validated the unified access control design for heterogeneous networks. It can be used as a framework for further testing and also as the foundation for a new physical design over which the heterogeneous networks operate seamlessly.


Descriptors :   *INTEROPERABILITY , *NETWORK TOPOLOGY , *WIRELESS COMPUTER NETWORKS , COMMUNICATIONS PROTOCOLS , COMMUNICATIONS TRAFFIC , COMPUTERIZED SIMULATION , CONFIGURATIONS , EXPERIMENTAL DESIGN , HETEROGENEITY , MULTIPLE ACCESS , NETWORK ARCHITECTURE , NETWORK FLOWS , NODES , PACKET SWITCHING , PERFORMANCE(ENGINEERING) , RADIO LINKS , SIGNAL PROCESSING , TRANSMITTER RECEIVERS


Subject Categories : Computer Programming and Software
      Computer Systems
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE