Noncoherent communications with large antenna arrays
Abstract/Contents
- Abstract
- This thesis proposes noncoherent communications as an alternative to coherent communications for massive MIMO systems. In contrast to coherent communications, noncoherent communications does not require information about the rapidly varying wireless channel. Instead it only uses in- formation about the slow changing properties of the channel, both at the transmitter and at the receiver. This thesis proposes two specific noncoherent system architectures: one based on average energy across all the antenna elements, and another based on energy detection in the beamspace, which is obtained by taking a spatial Fourier transform across the antenna elements. We consider one-shot communication and show that, under different conditions, these architectures are optimal in terms of the scaling behavior either of achievable multiuser rates or of error probability with the number of antennas. We also present simulation results to demonstrate the performance of noncoherent communication with these architectures. These architectures allow theoretically unbounded spectral efficiencies and multiuser interference suppression (depending on the number of users) even with no instantaneous information about the wireless channel. Moreover, as demonstrated through simulations in this thesis, due to their dependence only on the slowly changing properties of the wireless channel, the noncoherent architectures retain their good performance even in systems with high mobility or high carrier frequencies, whereas coherent communication breaks down completely in these environments.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2017 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Chowdhury, Mainak |
|---|---|
| Associated with | Stanford University, Department of Electrical Engineering. |
| Primary advisor | Goldsmith, Andrea, 1964- |
| Thesis advisor | Goldsmith, Andrea, 1964- |
| Thesis advisor | Arbabian, Amin |
| Thesis advisor | Özgür, Ayfer |
| Thesis advisor | Paulraj, Arogyaswami |
| Advisor | Arbabian, Amin |
| Advisor | Özgür, Ayfer |
| Advisor | Paulraj, Arogyaswami |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Mainak Chowdhury. |
|---|---|
| Note | Submitted to the Department of Electrical Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2017. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2017 by Mainak Chowdhury
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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