Projects per year
Abstract
This letter investigates the feasibility of the quantized digital polar transmitter architecture in a downlink multi-user massive multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system, where a low amplitude resolution and a moderate phase resolution are utilized. We derive a lower bound on the average sum-rate achievable with Gaussian signaling inputs and linear precoding by a simple diagonal approximation for the quantization distortion. The analysis and simulations demonstrate that the quantized polar transmitter can enable excellent performance in terms of average sum-rate throughput, symbol error rate (SER), and out-of-band (OOB) emission level, thus providing an attractive option for the traditional Cartesian architecture.
Original language | English |
---|---|
Pages (from-to) | 859 - 863 |
Number of pages | 5 |
Journal | IEEE Wireless Communications Letters |
Volume | 10 |
Issue number | 4 |
Early online date | 2020 |
DOIs | |
Publication status | Published - Apr 2021 |
MoE publication type | A1 Journal article-refereed |
Keywords
- linear precoding
- Massive MIMO
- OFDM
- polar transmitter
- power efficiency
- quantization.
- transmitter architectures
Fingerprint
Dive into the research topics of 'Quantized Polar Transmitters for Power Efficient Massive MIMO Systems'. Together they form a unique fingerprint.Projects
- 1 Finished
-
-: Hybrid amplitude/time-based transmitter for future wireless communications
Ryynänen, J. (Principal investigator), Spelman, A. (Project Member), Saleem, A. (Project Member), Cheung, T. (Project Member), Kosunen, M. (Project Member) & Stadius, K. (Project Member)
01/09/2019 → 31/08/2023
Project: Academy of Finland: Other research funding