Araştırma Makalesi
Yıl 2019,
Cilt: 23 Sayı: 6, 1242 - 1255, 01.12.2019
Öz
Kaynakça
- [1] N. R. a. I. Guvenc, "Licensed-Assisted Access for WiFi-LTE Coexistence in the Unlicensed Spectrum," IEEE, pp. 1-6, 2014. [2] J. A.-F. B. H. Alireza Babaei, "On the Impact of LTE-U on Wi-Fi Performance," IEEE, vol. 1, no. 978, pp. 1-5, 2014. [3] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm Technologies, 2016.[4] R. v. Steve, Wireless Networking Technology, UK: Newnes, 2007. [5] S. K. F. H. John D. Matyjas, Spectrum Sharing in Wireless Networks, Florida: CRC Press, 2016. [6] Devid, Certified Wireless Network Administrator, Indiana: Sybex, 2014.[7] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm, 2016.[8] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm, 25 Feb 2016. [Online]. Available: https://www.qualcomm.com/documents/progress-laa-and-its-relationship-lte-u-and-multefire. [Accessed 23 May 2018].[9] A. C. C. V. P. S. C. T. D. Abinader, "Enabling the Coexistence of LTE and Wi-Fi in Unlicensed Bands," IEEE, vol. 52, no. 11, pp. 54-61, 2014. [10] K. T. L. F. Sadek, "Extending LTE to Unlicensed Band – Merit and Coexistence," IEEE, pp. 1-6, 2015. [11] J. a. Wannstrom, "Carrier Aggregation explained," 3GPP, 16 June 2013. [Online]. Available:http://www.3gpp.org/technologies/keywords-acronyms/101-carrier-aggregation-explained. [Accessed 24 10 2018].[12] P. a. Ian, "LTE CA: Carrier Aggregation Tutorial," Radio-electronics, 18 11 2017. [Online]. Available: https://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/4g-lte-advanced-carrier-channel-aggregation.php. [Accessed 23 10 2018].[13] C. Cox, An Introduction to LTE, UK: WILEY, 2014. [14] L. a. pedrini, "What is Retransmission, ARQ and HARQ?," telecomehall, 22 June 2012. [Online].Available:http://www.telecomhall.com/what-is-retransmission-arq-and-harq.aspx. [Accessed 15 9 2018].[15] P. a. Monica, "LTE unlicensed and Wi-Fi: moving beyond coexistence," Senza Fili, London, 2015.[16] B. a. Jay, "The LTE-U Vs. WiFi Debate," Network computing, 05 Dec 2016. [Online]. Available:https://www.networkcomputing.com/wireless-infrastructure/lte-u-vs-wifi-debate/1619382711. [Accessed 01 Nov 2018].[17] A. V. D. Cavalcante, "Performance Evaluation of LTE and Wi-Fi Coexistence in Unlicensed Bands," IEEE, vol. 1, no. 2, pp. 1-6, 2013. [18] LTE-Forum, "Coexistence Study for LTE-U SDL V1.0 (2015 -02)," LTE-Forum, Stockholm, 2015.[19] S. K. ,. Jian, "Coexistence of Wi-Fi and LAA-LTE: Experimental evaluation, analysis and insights," IEEE, vol. 1, no. 1, pp. 1-7, 2015. [20] B. A.-F. Padden, "Overview of EU LBT and its Effectiveness for Coexistence of LAA LTE and Wi-Fi," 04 11 2014. [Online]. Available: https://vdocuments.site/download/submission-doc-ieee-80219-140082r0-november-2014-alireza-babaei-cablelabsslide. [Accessed 13 08 2018].[21] ns3, "Simulator," ns3, [Online]. Available: https://www.nsnam.org/.[22] 3GPP, "Status report for WI: Licensed-Assisted Access to Unlicensed Spectrum," 3GPP, Spain , 2016.[23] 3GPP, "3GPP TR 36.889, Study on Licensed-Assisted Access to Unlicensed Spectrum," 3GPP, 2015.
Yıl 2019,
Cilt: 23 Sayı: 6, 1242 - 1255, 01.12.2019
Öz
The
demand for high data rate and stable Quality of Service (QoS) from cellular
networks’ subscribers is a huge challenge for cellular operators. To overcome
this issue (providing high data rate and stable QoS) it requires more
bandwidth. The lack of licensed bandwidth and also its high cost make it hard
for operators to overcome this issue. To find a fair solution and expand the
capacity of cellular networks, operators started deployment of Long Term
Evolution (LTE) in unlicensed bandwidth, exactly utilizing 5GHz unlicensed
bandwidth in small cell scenarios. The extension of LTE to the 5GHz unlicensed
bandwidth where it is already in used by Wi-Fi will create huge coexistence
problems between Wi-Fi and LTE. It results from that Wi-Fi and LTE have
different channel access mechanisms. This paper presents the channel access
mechanisms of Wi-Fi and LTE-Licensed Assisted Access (LTE-LAA), coexistence problems,
challenges, privileges, coexistence features of LTE and Wi-Fi and Finally, we
conducted the simulation for LAA based on Listen Before Talk (LBT) mechanism and Wi-Fi to find that how LAA with
LBT mechanism is friendly to the Wi-Fi networks when they share the same
bandwidth. The simulation results illustrate that LAA based on LBT channel
access mechanism by alone cannot bring a fair coexistence between these two
technologies, it needs further improvement.
Anahtar Kelimeler
Kaynakça
- [1] N. R. a. I. Guvenc, "Licensed-Assisted Access for WiFi-LTE Coexistence in the Unlicensed Spectrum," IEEE, pp. 1-6, 2014. [2] J. A.-F. B. H. Alireza Babaei, "On the Impact of LTE-U on Wi-Fi Performance," IEEE, vol. 1, no. 978, pp. 1-5, 2014. [3] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm Technologies, 2016.[4] R. v. Steve, Wireless Networking Technology, UK: Newnes, 2007. [5] S. K. F. H. John D. Matyjas, Spectrum Sharing in Wireless Networks, Florida: CRC Press, 2016. [6] Devid, Certified Wireless Network Administrator, Indiana: Sybex, 2014.[7] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm, 2016.[8] Qualcomm, "Progress on LAA and its relationship to LTE-U and MulteFire," Qualcomm, 25 Feb 2016. [Online]. Available: https://www.qualcomm.com/documents/progress-laa-and-its-relationship-lte-u-and-multefire. [Accessed 23 May 2018].[9] A. C. C. V. P. S. C. T. D. Abinader, "Enabling the Coexistence of LTE and Wi-Fi in Unlicensed Bands," IEEE, vol. 52, no. 11, pp. 54-61, 2014. [10] K. T. L. F. Sadek, "Extending LTE to Unlicensed Band – Merit and Coexistence," IEEE, pp. 1-6, 2015. [11] J. a. Wannstrom, "Carrier Aggregation explained," 3GPP, 16 June 2013. [Online]. Available:http://www.3gpp.org/technologies/keywords-acronyms/101-carrier-aggregation-explained. [Accessed 24 10 2018].[12] P. a. Ian, "LTE CA: Carrier Aggregation Tutorial," Radio-electronics, 18 11 2017. [Online]. Available: https://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/4g-lte-advanced-carrier-channel-aggregation.php. [Accessed 23 10 2018].[13] C. Cox, An Introduction to LTE, UK: WILEY, 2014. [14] L. a. pedrini, "What is Retransmission, ARQ and HARQ?," telecomehall, 22 June 2012. [Online].Available:http://www.telecomhall.com/what-is-retransmission-arq-and-harq.aspx. [Accessed 15 9 2018].[15] P. a. Monica, "LTE unlicensed and Wi-Fi: moving beyond coexistence," Senza Fili, London, 2015.[16] B. a. Jay, "The LTE-U Vs. WiFi Debate," Network computing, 05 Dec 2016. [Online]. Available:https://www.networkcomputing.com/wireless-infrastructure/lte-u-vs-wifi-debate/1619382711. [Accessed 01 Nov 2018].[17] A. V. D. Cavalcante, "Performance Evaluation of LTE and Wi-Fi Coexistence in Unlicensed Bands," IEEE, vol. 1, no. 2, pp. 1-6, 2013. [18] LTE-Forum, "Coexistence Study for LTE-U SDL V1.0 (2015 -02)," LTE-Forum, Stockholm, 2015.[19] S. K. ,. Jian, "Coexistence of Wi-Fi and LAA-LTE: Experimental evaluation, analysis and insights," IEEE, vol. 1, no. 1, pp. 1-7, 2015. [20] B. A.-F. Padden, "Overview of EU LBT and its Effectiveness for Coexistence of LAA LTE and Wi-Fi," 04 11 2014. [Online]. Available: https://vdocuments.site/download/submission-doc-ieee-80219-140082r0-november-2014-alireza-babaei-cablelabsslide. [Accessed 13 08 2018].[21] ns3, "Simulator," ns3, [Online]. Available: https://www.nsnam.org/.[22] 3GPP, "Status report for WI: Licensed-Assisted Access to Unlicensed Spectrum," 3GPP, Spain , 2016.[23] 3GPP, "3GPP TR 36.889, Study on Licensed-Assisted Access to Unlicensed Spectrum," 3GPP, 2015.
Toplam 1 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Bilgisayar Yazılımı |
| Bölüm | Araştırma Makalesi |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Aralık 2019 |
| Gönderilme Tarihi | 24 Nisan 2019 |
| Kabul Tarihi | 3 Eylül 2019 |
| Yayımlandığı Sayı | Yıl 2019 Cilt: 23 Sayı: 6 |
Kaynak Göster
Sakarya University Journal of Science (SAUJS)