Communication Networks Research Group

Department of Electrical Engineering and Bharti School of Telecommunication Indian Institute of Technology Delhi Hauz Khas, New Delhi 110016, India
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[Completed] “Mobile broadband service support over cognitive radio networks”, ITRA collaborative research, 2013-18 (Co-PI)



Figure: A novel architecture for rural broadband access over TVWS without additional infrastructure

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Cognitive radio technology allows unlicensed (secondary or cognitive) users to share the spectrum allocated to a licensed (primary) user. Interweave, underlay, and overlay cognitive radio techniques have been suggested for improving the licensed spectrum resource. Despite, the promise shown by these radios, they have not been widely deployed.
The goal of this project has been to address some of the dynamic spectrum access (DSA) and TV white-space spectrum access (WSA) protocol and cross-layer optimization aspects and pave the way for deployment of such radio technologies in future. Specific emphasis in the project has been on developing technologies and solutions for DSA and WSA to help solve India-specific cognitive radio access issues. A summary of list of tasks executed by Prof. De’s group are the following:

  1. Media-access control, networks, and systems-level DSA and WSA protocol development and analysis (Reference: IEEE Trans. Mob. Comput., 2014; IEEE Trans. Green Commun. Netw., 2017; IEEE Commun. Lett., 2015; IEEE Trans. Mob. Comput., 2016; IET Comm., 2016; IEEE Trans. Cognitive Commun. Netw., 2016)
  2. Development of novel rural broadband access architecture (IEEE/ACM Trans. Netw., 2018)
  3. Proof-of-concept experiments and testbed with Software-Defined Radios on DSA/WSA (Reference: IEEE Commun. Lett., 2016)
[Students: Satyam Agarwal, Anshul Thakur, Anurag Gupta]