Optimising resources in future heterogeneous millimetre wave communication systems
Lead Research Organisation:
University of Surrey
Department Name: Communications Systems Res CCSR
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Organisations
People |
ORCID iD |
| Barry Evans (Principal Investigator) |
Publications
Ekerete K
(2020)
Robust Adaptive Margin for ACM in Satellite Links at EHF Bands
in IEEE Communications Letters
Ekerete K
(2017)
Wireless and Satellite Systems
Kufre J
(2021)
A New Calibration Estimator of Population Mean for Small Area with Nonresponse
in Asian Journal of Probability and Statistics
| Description | We have established switch over statistics for two gateways separated by around 500km in an HTS satellite system using measured Q band propagation data in the UK. The impacts of the higher ferquency propagation on ACM in DVD-S2x has been evaluated and an improved method of selection of switching demonstrated. Findings are applicable to future satellite communication systems. |
| Exploitation Route | We are comntinuing to work on the data collected to investigate AI and deep learning schemes to invesitgate improved hand overs between gateways that will improve the data loss in the process. This will also have implications in the current constellations of LEO satellites. |
| Sectors | Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software) |
| Description | The use of the higher frequency bands in satellite communications is currently a hot topic, both for GEO and non-GEO constellations. The work in this project will directly influence the operation of gateway stations and can impact on the number required and hence the economics of the systems as the gateway numbers increase with the number of beams used on the satellite. These systems are only now starting to be planned and the current work is a direct input to their design. The operation of the adaptive communications links to combat rainfall will also be influenced by the outcome of the work as it develops. On a societal front the systems influenced will help to provide wider broadband service coverage at cheaper rates and help avaoid the digital divide. Further work on the data set resulted in a publication GatewaySite diversity statistics for EHF Band satellite systems presented in the 2021 Ka band conference. This provided further useful validation on the gateway switching statistics. It can influence the design of the new vHTS GEO and LEO constellatiuons currently being designed. |
| First Year Of Impact | 2021 |
| Sector | Digital/Communication/Information Technologies (including Software) |
| Impact Types | Societal |
| Title | Adaptive margins for use in ACM at mm wave frequencies. |
| Description | In current ACM system a fixed margin is used to change modulation and coding pairs to mitigate rain fades. This technique is inefficient at higher mm wave frequencies where the rain characteristics are more diverse, The scheme proposed and studied uses an adaptive margin scheme to map the variations of the rain fading and is shown to improve efficiencies. |
| Type Of Material | Improvements to research infrastructure |
| Year Produced | 2017 |
| Provided To Others? | No |
| Impact | The impacts will be in the incorporation of the scheme in commercial satellite terminal equipments in the future and its potential take up in DVB standards. |