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5 papers · 2 filters
Delay-Throughput Tradeoff for Supportive Two-Tier Networks
Long Gao, Rui Zhang, Changchuan Yin +1
Consider a static wireless network that has two tiers with different priorities: a primary tier vs. a secondary tier. The primary tier consists of randomly distributed legacy nodes…
On the Index Coding Problem and its Relation to Network Coding and Matroid Theory
Salim Y. El Rouayheb, Alex Sprintson, Costas N. Georghiades
The \emph{index coding} problem has recently attracted a significant attention from the research community due to its theoretical significance and applications in wireless ad-hoc n…
Optimal Beamforming for Two-Way Multi-Antenna Relay Channel with Analogue Network Coding
Rui Zhang, Ying-Chang Liang, Chin Choy Chai +1
This paper studies the wireless two-way relay channel (TWRC), where two source nodes, S1 and S2, exchange information through an assisting relay node, R. It is assumed that R recei…
Scaling Laws for Overlaid Wireless Networks: A Cognitive Radio Network vs. a Primary Network
Changchuan Yin, Long Gao, Shuguang Cui
We study the scaling laws for the throughputs and delays of two coexisting wireless networks that operate in the same geographic region. The primary network consists of Poisson dis…
Families of LDPC Codes Derived from Nonprimitive BCH Codes and Cyclotomic Cosets
Salah A. Aly
Low-density parity check (LDPC) codes are an important class of codes with many applications. Two algebraic methods for constructing regular LDPC codes are derived -- one based on…