QR decomposition (QRD)-based precoded MIMO-OFDM systems with reduced feedback are proposed to convert the MIMO-OFDM channel into layered subchannels. QRD-M is further combined wit...
—Layered streaming in overlay networks has drawn great interests since not only can it accomodate large scales of clients but also it handles client heterogeneities. However, to ...
—This work combines two existing defenses against distributed denial-of-service (DDoS) attacks DefCOM and Speak-up resulting in a synergistic improvement. DefCOM defense organize...
Mohit Mehta, Kanika Thapar, George C. Oikonomou, J...
— In large Wireless Sensor Networks (WSNs), each hop might incur varying delays due to medium access contention, transmission and computation delays. Fast and efficient query re...
Xiaoming Lu, Matt Spear, Karl N. Levitt, Norman S....
—One of the major threats to cyber security is the Distributed Denial-of-Service (DDoS) attack. In our previous projects, PacketScore, ALPi, and other statistical filtering-based...