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CISS
2007
IEEE
15 years 10 months ago
Differential Space-Frequency Group Codes for MIMO-OFDM
— In recent years, coherent space-frequency (SF) coded multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems have attracted great attentio...
Engin Zeydan, Ufuk Tureli
129
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FOCS
2007
IEEE
15 years 10 months ago
Non-Linear Index Coding Outperforming the Linear Optimum
The following source coding problem was introduced by Birk and Kol: a sender holds a word x ∈ {0, 1}n , and wishes to broadcast a codeword to n receivers, R1, . . . , Rn. The re...
Eyal Lubetzky, Uri Stav
SIGSOFT
2007
ACM
16 years 4 months ago
Does a programmer's activity indicate knowledge of code?
The practice of software development can likely be improved if an externalized model of each programmer's knowledge of a particular code base is available. Some tools already...
Thomas Fritz, Gail C. Murphy, Emily Hill
INFOCOM
2007
IEEE
15 years 10 months ago
Data Persistence in Large-Scale Sensor Networks with Decentralized Fountain Codes
Abstract—It may not be feasible for sensor networks monitoring nature and inaccessible geographical regions to include powered sinks with Internet connections. We consider the sc...
Yunfeng Lin, Ben Liang, Baochun Li
SIPS
2007
IEEE
15 years 10 months ago
Systematic Luby Transform Codes and Their Soft Decoding
– Luby Transform codes (LT) were originally designed for the Binary Erasure Channel (BEC) encountered owing to randomly dropped packets in the statistical multiplexing aided clas...
Thanh Dang Nguyen, Lie-Liang Yang, Lajos Hanzo