PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks
Nowadays public safety networks are widely deployed to support highly reliable wireless communications in case of emergency. The adoption of standardized systems such as WiMAX for emergency communications represents a significant advance in the off-the-shelf technologies for error detection and erro...
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| Format: | Article |
| Language: | English |
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Wiley
2014-04-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2014/254753 |
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| author | Wen-Kang Jia Chia-Yao Chen Yaw-Chung Chen |
| author_facet | Wen-Kang Jia Chia-Yao Chen Yaw-Chung Chen |
| author_sort | Wen-Kang Jia |
| collection | DOAJ |
| description | Nowadays public safety networks are widely deployed to support highly reliable wireless communications in case of emergency. The adoption of standardized systems such as WiMAX for emergency communications represents a significant advance in the off-the-shelf technologies for error detection and error correction. Since it is difficult to fully eliminate the Doppler effect under high speed moving environment, we propose an enhanced CRC-based error correction scheme that carries as much extra segmented frame Check Sequence (FCS) information as subblocks of emergency multicast/broadcast service (MBS) frame, called progressive and selective frame check sequence (PSFCS). In a mobile multihop relay (MMR) environment, a high-mobility mobile station might receive an emergency MBS frame more than once, so the PSFCS could be cross-referenced by duplicated frames received. Therefore the PSFCS achieves a significant performance improvement over the legacy FCS scheme in terms of error detection and correction of emergency MBS frames in a WiMAX MMR network operating in transparent mode. The experimental results show that the goodput and utilization of high-mobility mobile stations can be improved remarkably. |
| format | Article |
| id | doaj-art-4a2299fa56974062bae5c9034460443c |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2014-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-4a2299fa56974062bae5c9034460443c2025-02-03T05:44:19ZengWileyInternational Journal of Distributed Sensor Networks1550-14772014-04-011010.1155/2014/254753254753PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR NetworksWen-Kang Jia0Chia-Yao Chen1Yaw-Chung Chen2 Department of Computer Science, National Chiao Tung University (NCTU), 1001 University Road, Hsinchu 300, Taiwan Department of Computer Science, National Chiao Tung University (NCTU), 1001 University Road, Hsinchu 300, Taiwan Department of Computer Science, National Chiao Tung University (NCTU), 1001 University Road, Hsinchu 300, TaiwanNowadays public safety networks are widely deployed to support highly reliable wireless communications in case of emergency. The adoption of standardized systems such as WiMAX for emergency communications represents a significant advance in the off-the-shelf technologies for error detection and error correction. Since it is difficult to fully eliminate the Doppler effect under high speed moving environment, we propose an enhanced CRC-based error correction scheme that carries as much extra segmented frame Check Sequence (FCS) information as subblocks of emergency multicast/broadcast service (MBS) frame, called progressive and selective frame check sequence (PSFCS). In a mobile multihop relay (MMR) environment, a high-mobility mobile station might receive an emergency MBS frame more than once, so the PSFCS could be cross-referenced by duplicated frames received. Therefore the PSFCS achieves a significant performance improvement over the legacy FCS scheme in terms of error detection and correction of emergency MBS frames in a WiMAX MMR network operating in transparent mode. The experimental results show that the goodput and utilization of high-mobility mobile stations can be improved remarkably.https://doi.org/10.1155/2014/254753 |
| spellingShingle | Wen-Kang Jia Chia-Yao Chen Yaw-Chung Chen PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks International Journal of Distributed Sensor Networks |
| title | PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks |
| title_full | PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks |
| title_fullStr | PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks |
| title_full_unstemmed | PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks |
| title_short | PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks |
| title_sort | psfcs robust emergency communications supporting high mobility based on wimax mmr networks |
| url | https://doi.org/10.1155/2014/254753 |
| work_keys_str_mv | AT wenkangjia psfcsrobustemergencycommunicationssupportinghighmobilitybasedonwimaxmmrnetworks AT chiayaochen psfcsrobustemergencycommunicationssupportinghighmobilitybasedonwimaxmmrnetworks AT yawchungchen psfcsrobustemergencycommunicationssupportinghighmobilitybasedonwimaxmmrnetworks |