Adaptive filtering for selective subband transmission based on interference detection

Pingzhou Tu*, Xiaojing Huang, Eryk Dutkiewicz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

In a shared radio spectrum environment, multiple systems may interfere with each other. In this paper we propose an adaptive filtering method to suppress interference and select the most suitable subbands according to predetermined interference thresholds. Two methods to determine these interference thresholds in Gaussian and multipath fading channels are introduced. The adaptive filtering method enables a system to dynamically use frequency subbands with-out employing frequency hopping techniques. The flexible received signal bandwidth with difierent number of subbands provides great potential for systems to coexist with each other, resulting in higher spectrum utilization effciency. To verify the efiectiveness of the proposed adaptive filtering method, the system bit error rates (BERs) under difierent interference conditions are simulated and compared.

Original languageEnglish
Title of host publicationProceedings of the 9th ACM International Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc'08 - 1st ACM International Workshop on Heterogeneous Sensor and Actor Networks, HeterSanet 2008
Place of PublicationNew York
PublisherAssociation for Computing Machinery (ACM)
Pages95-100
Number of pages6
ISBN (Print)9781605581132
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event9th ACM International Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc'08 - 1st ACM International Workshop on Heterogeneous Sensor and Actor Networks, HeterSanet 2008 - Hong Kong, China
Duration: 30 May 200830 May 2008

Other

Other9th ACM International Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc'08 - 1st ACM International Workshop on Heterogeneous Sensor and Actor Networks, HeterSanet 2008
CountryChina
CityHong Kong
Period30/05/0830/05/08

Keywords

  • Adaptive filtering
  • Interference threshold
  • Subband transmission

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