Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/628520
Title: Comprehensive Spectrum Management for Heterogeneous Networks in LTE-U
Authors: Taras Maksymyuk;Maryan Kyryk;Minho Jo
subject: Mobile communication|Long Term Evolution|IEEE 802.11 Standard|Interference|Resource management|Heterogeneous networks
Year: 2016
Publisher: IEEE
Abstract: Recent interesting activities in spectrum analysis have introduced an additional band, the 5 GHz unlicensed spectrum, which has been primarily used for Wi-Fi. There are many challenges related to the coexistence of two different networks, a Wi-Fi network and an LTE network, sharing unlicensed bands but causing interference with each other. In this article, to solve the coexistence challenges, we propose a new protocol for carrier sensing and interference avoidance for heterogeneous networks: carrier sense LTE unlicensed access (CASLUA). The key idea of this protocol is that it listens to the channel by using a Wi-Fi air interface, but actually transmits data via an LTE air interface. This is achieved by using a proposed dual frame aggregation scheme where two frames (an L-frame and a U-frame) are allocated to licensed and unlicensed bands, respectively. Two implementations of CASLUA are carried out, one based on standalone operation (S-CASLUA)and the other operating with assistance from a software-defined network controller (SDN-CASLUA). SDN assistance lies in the monitoring of multiple network parameters, which are then used to make a decision on effective spectrum allocation with awareness of interference and capacity demands. Simulation results show that the CASLUA protocol helps to avoid interference and increases the average throughput by up to 40 percent for both Wi-Fi and LTE users in LTE-Unlicensed.
Description: 
URI: http://localhost/handle/Hannan/163293
http://localhost/handle/Hannan/628520
ISSN: 1536-1284
volume: 23
issue: 6
Appears in Collections:2016

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Title: Comprehensive Spectrum Management for Heterogeneous Networks in LTE-U
Authors: Taras Maksymyuk;Maryan Kyryk;Minho Jo
subject: Mobile communication|Long Term Evolution|IEEE 802.11 Standard|Interference|Resource management|Heterogeneous networks
Year: 2016
Publisher: IEEE
Abstract: Recent interesting activities in spectrum analysis have introduced an additional band, the 5 GHz unlicensed spectrum, which has been primarily used for Wi-Fi. There are many challenges related to the coexistence of two different networks, a Wi-Fi network and an LTE network, sharing unlicensed bands but causing interference with each other. In this article, to solve the coexistence challenges, we propose a new protocol for carrier sensing and interference avoidance for heterogeneous networks: carrier sense LTE unlicensed access (CASLUA). The key idea of this protocol is that it listens to the channel by using a Wi-Fi air interface, but actually transmits data via an LTE air interface. This is achieved by using a proposed dual frame aggregation scheme where two frames (an L-frame and a U-frame) are allocated to licensed and unlicensed bands, respectively. Two implementations of CASLUA are carried out, one based on standalone operation (S-CASLUA)and the other operating with assistance from a software-defined network controller (SDN-CASLUA). SDN assistance lies in the monitoring of multiple network parameters, which are then used to make a decision on effective spectrum allocation with awareness of interference and capacity demands. Simulation results show that the CASLUA protocol helps to avoid interference and increases the average throughput by up to 40 percent for both Wi-Fi and LTE users in LTE-Unlicensed.
Description: 
URI: http://localhost/handle/Hannan/163293
http://localhost/handle/Hannan/628520
ISSN: 1536-1284
volume: 23
issue: 6
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7811831.pdf216.19 kBAdobe PDFThumbnail
Preview File
Title: Comprehensive Spectrum Management for Heterogeneous Networks in LTE-U
Authors: Taras Maksymyuk;Maryan Kyryk;Minho Jo
subject: Mobile communication|Long Term Evolution|IEEE 802.11 Standard|Interference|Resource management|Heterogeneous networks
Year: 2016
Publisher: IEEE
Abstract: Recent interesting activities in spectrum analysis have introduced an additional band, the 5 GHz unlicensed spectrum, which has been primarily used for Wi-Fi. There are many challenges related to the coexistence of two different networks, a Wi-Fi network and an LTE network, sharing unlicensed bands but causing interference with each other. In this article, to solve the coexistence challenges, we propose a new protocol for carrier sensing and interference avoidance for heterogeneous networks: carrier sense LTE unlicensed access (CASLUA). The key idea of this protocol is that it listens to the channel by using a Wi-Fi air interface, but actually transmits data via an LTE air interface. This is achieved by using a proposed dual frame aggregation scheme where two frames (an L-frame and a U-frame) are allocated to licensed and unlicensed bands, respectively. Two implementations of CASLUA are carried out, one based on standalone operation (S-CASLUA)and the other operating with assistance from a software-defined network controller (SDN-CASLUA). SDN assistance lies in the monitoring of multiple network parameters, which are then used to make a decision on effective spectrum allocation with awareness of interference and capacity demands. Simulation results show that the CASLUA protocol helps to avoid interference and increases the average throughput by up to 40 percent for both Wi-Fi and LTE users in LTE-Unlicensed.
Description: 
URI: http://localhost/handle/Hannan/163293
http://localhost/handle/Hannan/628520
ISSN: 1536-1284
volume: 23
issue: 6
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7811831.pdf216.19 kBAdobe PDFThumbnail
Preview File