Research Areas and Interests
- Wireless Networking
- Wireless Communications
- potential network architectures for 6th-generation (6G) networks
- network virtualization, e.g., network topology, transport protocol and congestion control for virtual networks
- network slicing for wireless communications
- link layer networking protocols
- application of machine learning in communication networks.
Vehicular Communication Networks: We have developed networking protocols and algorithms for quality-of-service support. For example, we have proposed VeMAC, a novel multichannel TDMA MAC protocol proposed specifically for a VANET scenario. The VeMAC supports efficient one-hop and multi-hop broadcast services on the control channel by using implicit acknowledgments and eliminating the hidden terminal problem. The protocol reduces transmission collisions due to node mobility on the control channel by assigning disjoint sets of time slots to vehicles moving in opposite directions and to road side units. Analysis and simulation results in highway and city scenarios are presented to evaluate the performance of VeMAC and compare it with ADHOC MAC, an existing TDMA MAC protocol for VANETs. It is shown that, due to its ability to decrease the rate of transmission collisions, the VeMAC protocol can provide significantly higher throughput on the control channel than ADHOC MAC. [Please watch simulated vehicle traffic flows on YouTube http://youtu.be/GjYWe7eLJ3s and http://youtu.be/48daRU6ZpjI]
