—In this paper, a novel hybrid ARQ scheme based on shift column permutation bit interleaving is proposed for OFDM systems. When a packet is requested for retransmission, we can u...
On a common sensor node platform (Telos) we sample RSSI with high frequency during packet reception. We find that a packet collision (RF interference) often manifests as a measurab...
We study a problem motivated by cognitive radio in which the primary is a packet system that employs ARQ feedback. A secondary system is allowed to transmit in the same frequency b...
Krishnan Eswaran, Michael Gastpar, Kannan Ramchand...
We consider two automatic repeat request (ARQ) schemes based on subcarrier assignment in orthogonal frequency-division multiplexing (OFDM)-based systems: single ARQ subcarrier assi...
—The focus of this paper is an information-theoretic study of retransmission protocols for reliable packet communication under a secrecy constraint. The hybrid automatic retransm...
Xiaojun Tang, Ruoheng Liu, Predrag Spasojevic, H. ...