Wireless Networks Research Group (WNRG)

Director: Dr. Mahasweta Sarkar

Mission of the WNRG:

The mission of the WNRG is to make an impact, through dedicated research, in the world of Wireless and Mobile networks.

The following are some of the ongoing and recent research topics (primarily in the area of wireless networks) investigated by the Wireless Networks Research Group at SDSU.


Research is carried out on a wide variety of topics in the domain of wireless and mobile networks. Theoretical and mathematical models of wireless networks are formulated and analysed through numerical methods and simulations. The pursuit is to create network systems with optimal performnaces.

Ongoing Research interests include:

  • Body Area Networks (BANs) and other Wireless Health topics:
  • Our research in the area of WBAN mainly focuses on studying the existing technology that is "supposedly" suitable to a BAN application and recognizing the points of failure in those technologies to cater to an application like BAN, thereby providing the motivation to research and design a BAN-appropriate communication paradigm.

  • Green Networking:
  • In response to energy costs, environmental concerns and governmental directives, there is an increased need for sustainable and "green" communication. Complicating the deployment of "greener" communication networks is the trend of increasing multimedia data dominating the Internet traffic today which makes tremendously high claims on the power budget of a network. The novelty of our research lies in the conceptualization of exploiting the spatial and temporal fluctuation of cellular traffic to the advantage of the network, namely power savings for the network. We etch the design of a network entity, referred to as the Dynamic Network Planner (DNP), which is aware of the changing profile of the network users, not just in terms of their number and physical location but also the changing profile of the requirements of these users' applications. Based on this knowledge (input), the DNP periodically reconfigures the network by dynamically adjusting the cell sizes (coverage) and capacity of the appropriate Base Stations deployed in its area of jurisdiction so as to minimize the total power consumption of the network while satisfying the requirements of all the user applications.

  • Cloud Computing:
  • Cloud computing, with the revolutionary promise of turning computing as a 5th utility, after water, electricity, gas, and telephony, has the potential to transform the face of Information Technology (IT) - especially the aspects of service-rendition and service management. We are in the process of exploiting the capabilities of Cloud Computing to design mobile query processes to cater to next generation social networking applications.

  • Research on Social Networking:
  • We are broadly interested in the design and analysis of next-generation mobile social networking applications. We envision creating wearable devices with peer-to-peer communication capability, in which each user store and hereby share their information with a host of other users within some spatial/temporal/social scope. This work entails research on new kinds of signal-interference mitigation schemes, radio designs and novel database management and creation techniques along with novel query operations.

    The research topics below summarize some of the issues in wireless networking that we explore continually:

  • Packet Delay and Energy Consumption Issues in Wireless Networks.
  • QoS issues in Wireless and Ad-Hoc Networks (Focus: Multimedia Traffic).
  • Novel MAC Layer channel access schemes.
  • Game Theoretic Approaches for Network Resource Allocation in Ad-Hoc Networks.