BROWSE
Detail
Journal Article
Simple Methods for Estimating Required SNR in Dual-Polarized MIMO Systems Under Limited XPD
- Authors
- Sungjun Ahn, Sung-Ik Park
- Issue Date
- 2026-06
- Citation
- IEEE Transactions on Broadcasting, v.72, no.2, pp.734-753
- ISSN
- 0018-9316
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- This paper presents simple semi-analytical methods for estimating the required carrier-to-noise ratio (CNR) in multiinput multi-output (MIMO) broadcasting systems. The estimates are derived according to cross-polarization discrimination (XPD) level of the transmission channel, thereby evaluating the impact of cross-polarization interference. The proposed models convert known single-input single-output (SISO) system performance, e.g., CNR threshold measurements in ATSC A/327 [Annex A, 1], into the CNR required in MIMO transmission. Two classes of estimation are developed: one assuming perfect channel knowledge (Class P), and the other accounting for channel estimation errors and pilot boosting (Class E). In addition to the conventional single-layer configuration, estimations under layered division multiplexing (LDM) configurations are also addressed, where every layer is assumed to use MIMO. Closed-form expressions are provided for both layered and non-layered MIMO scenarios. The models offer a lightweight alternative to full-system simulations, enabling early-stage design evaluation and practical system planning in cross-polarized environments.
- Keyword
- cross-polarization discrimination (XPD), Cross-polarized MIMO, threshold of visibility (ToV)
- KSP Keywords
- Broadcasting system, Channel estimation(CE), Closed-form expressions, Cross polarization(CP), Cross-polarization Discrimination(XPD), Cross-polarized, Design evaluation, Dual-polarized MIMO, Early-stage design, Layered division multiplexing, MIMO system
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
