Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization
Due to the increasing mobile traffic demands in cellular network, researchers have proposed the coexistence of LTE and WiFi technologies in 5 GHz unlicensed bands. Therefore, how to efficiently utilize the spectrum in 5 GHz becomes extremely important. To avoid the channel access conflicts, current...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Computer Networks and Communications |
| Online Access: | http://dx.doi.org/10.1155/2017/5156164 |
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| _version_ | 1832558350021165056 |
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| author | Hongyu Sun Zhiyi Fang Qun Liu Zheng Lu Ting Zhu |
| author_facet | Hongyu Sun Zhiyi Fang Qun Liu Zheng Lu Ting Zhu |
| author_sort | Hongyu Sun |
| collection | DOAJ |
| description | Due to the increasing mobile traffic demands in cellular network, researchers have proposed the coexistence of LTE and WiFi technologies in 5 GHz unlicensed bands. Therefore, how to efficiently utilize the spectrum in 5 GHz becomes extremely important. To avoid the channel access conflicts, current LTE Unlicensed (LTE-U) technology introduces the duty cycle of LTE, while License-Assisted Access (LAA) technology introduces Listen-Before-Talk (LBT) mechanism. While these two technologies improve the spectrum utilization by using time division access schema, we believe that more efficient spectrum utilization can be achieved by enabling simultaneous transmissions from LTE and WiFi. In this paper, we propose a novel method (i.e., Low Amplitude Stream Injection (LASI) method) to enable the simultaneous transmissions of WiFi and LTE frames in the same channel and recover the data from the conflicts. To further utilize the LASI method, we introduce the Conflict-Tolerant Channel Allocation (CTCA) algorithm to optimize the channel allocation and achieve more efficient spectrum utilization in 5 GHz. Extensive simulation results show that our approach achieves lower latency and higher throughput. Compared with the state-of-the-art LTE-U and LAA technologies, our approach can improve the spectrum efficiency 2.9 times. |
| format | Article |
| id | doaj-art-e2c6a099044a47d881fdad66cf4f0737 |
| institution | Kabale University |
| issn | 2090-7141 2090-715X |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Computer Networks and Communications |
| spelling | doaj-art-e2c6a099044a47d881fdad66cf4f07372025-02-03T01:32:36ZengWileyJournal of Computer Networks and Communications2090-71412090-715X2017-01-01201710.1155/2017/51561645156164Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum UtilizationHongyu Sun0Zhiyi Fang1Qun Liu2Zheng Lu3Ting Zhu4College of Computer Science and Technology, Jilin University, Changchun, ChinaCollege of Computer Science and Technology, Jilin University, Changchun, ChinaNetwork Center, Jilin University, Changchun, ChinaCollege of Computer Science and Technology, Jilin University, Changchun, ChinaComputer Science and Electrical Engineering, University of Maryland, Baltimore, MD, USADue to the increasing mobile traffic demands in cellular network, researchers have proposed the coexistence of LTE and WiFi technologies in 5 GHz unlicensed bands. Therefore, how to efficiently utilize the spectrum in 5 GHz becomes extremely important. To avoid the channel access conflicts, current LTE Unlicensed (LTE-U) technology introduces the duty cycle of LTE, while License-Assisted Access (LAA) technology introduces Listen-Before-Talk (LBT) mechanism. While these two technologies improve the spectrum utilization by using time division access schema, we believe that more efficient spectrum utilization can be achieved by enabling simultaneous transmissions from LTE and WiFi. In this paper, we propose a novel method (i.e., Low Amplitude Stream Injection (LASI) method) to enable the simultaneous transmissions of WiFi and LTE frames in the same channel and recover the data from the conflicts. To further utilize the LASI method, we introduce the Conflict-Tolerant Channel Allocation (CTCA) algorithm to optimize the channel allocation and achieve more efficient spectrum utilization in 5 GHz. Extensive simulation results show that our approach achieves lower latency and higher throughput. Compared with the state-of-the-art LTE-U and LAA technologies, our approach can improve the spectrum efficiency 2.9 times.http://dx.doi.org/10.1155/2017/5156164 |
| spellingShingle | Hongyu Sun Zhiyi Fang Qun Liu Zheng Lu Ting Zhu Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization Journal of Computer Networks and Communications |
| title | Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization |
| title_full | Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization |
| title_fullStr | Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization |
| title_full_unstemmed | Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization |
| title_short | Enabling LTE and WiFi Coexisting in 5 GHz for Efficient Spectrum Utilization |
| title_sort | enabling lte and wifi coexisting in 5 ghz for efficient spectrum utilization |
| url | http://dx.doi.org/10.1155/2017/5156164 |
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