10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The Ohio State UniversityUS1.5k papers
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8 papers · 2 filters
Performance Analysis and Compensation of Joint TX/RX I/Q Imbalance in Differential STBC-OFDM
Lei Chen, Ahmed G. Helmy, Guangrong Yue +2
Differential space time block coding (STBC) achieves full spatial diversity and avoids channel estimation overhead. Over highly frequency-selective channels, STBC is integrated wit…
Secure Communications in the Presence of a Buffer-Aided Wireless-Powered Relay With Self-Energy Recycling
Ahmed El Shafie, Naofal Al-Dhahir
We consider a relay-assisted wireless network, where the energy-harvesting buffer-aided relay node is powered by radio-frequency signals from a source node wishing to communicate w…
Broadcast Coded Modulation: Multilevel and Bit-interleaved Construction
Ahmed Abotabl, Aria Nosratinia
The capacity of the AWGN broadcast channel is achieved by superposition coding, but superposition of individual coded modulations expands the modulation alphabet and distorts its c…
Design and Analysis of Initial Access in Millimeter Wave Cellular Networks
Yingzhe Li, Jeffrey G. Andrews, Francois Baccelli +2
Initial access is the process which allows a mobile user to first connect to a cellular network. It consists of two main steps: cell search (CS) on the downlink and random access (…
On the Performance of Multihop-Intervehicular Communications Systems over n*Rayleigh Fading Channels
Yahia Alghorani, Georges Kaddoum, Sami Muhaidat +2
We investigate the performance of multihop-intervehicular communication systems with regenerative and nonregenerative relaying. We consider the so-called "n*Rayleigh distribution"…
Sum Secrecy Rate Maximization for Full-Duplex Two-Way Relay Networks Using Alamouti-based Rank-Two Beamforming
Qiang Li, Wing-Kin Ma, Dong Han
Consider a two-way communication scenario where two single-antenna nodes, operating under full-duplex mode, exchange information to one another through the aid of a (full-duplex) m…
Coherence Disparity in Broadcast and Multiple Access Channels
Mohamed Fadel, Aria Nosratinia
Individual links in a wireless network may experience unequal fading coherence times due to differences in mobility or scattering environment, a practical scenario where the fundam…
Design and Analysis Framework for Sparse FIR Channel Shortening
Abubakr O. Al-Abbasi, Ridha Hamila, Waheed U. Bajwa +1
A major performance and complexity limitation in broadband communications is the long channel delay spread which results in a highly-frequency-selective channel frequency response.…