Seminar: Communication and Information Theory

ECE Women Community

Communications Aspects of Cloud Radio Access Networks

Date: December,08,2022 Start Time: 14:30 - 15:30
Location: 1061, Meyer Building
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Lecturer: Asif Katz
Affiliations: The Andrew and Erna Viterbi Faculty of Electrical & Computer Engineering

The increasing demand for higher communication capacity, for example 5G NR, requires communication systems that provide higher spectral efficiency, lower power consumption, control on resource pooling and easier scalability. This can be achieved with centralization of the network processing unit. Base stations with relaying capabilities are central element in this system, that transmit the uplink channel signal from the users to the centralized processing unit, and the downlink channel signal from the centralized processing unit to the users.

In this talk we will present our research on a special case of the uplink channel, that is the diamond relay, comprising of Gaussian channels with an identical frequency response from the user to the relays, and lossless fronthaul links with limited rate from the relays to the destination. We investigate and compare the performance of several relaying techniques, while also extending the system model with the effects of real-world scenarios such as asymmetric channel and correlated noise at the relays due to a jammer. We also examine the optimal Gaussian input frequency power distribution that maximizes the information rate.


*      M.Sc. student under the supervision of Professor Shlomo Shamai (Shitz).


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