An advanced Wi-Fi data service platform coupled with a cellular network for future wireless access

Kudo, Ryuichi; Takatori, Yasushi; Abeysekera, B. A. Hirantha Sithira; Inoue, Yoshio; Murase, A.; Yamada, Akira; Hiroto, Yasuda; Okumura, Yukihiko

doi:10.1109/mcom.2014.6957142

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…IEEE 802.11 wireless local area network (WLAN) is being deployed worldwide and lighting up our daily lives [1] [2]. The ever-increasing wireless traffic requires higher transmission capacity for the next generation WLAN.…”

Section: Introductionmentioning

confidence: 99%

FuPlex: A Full Duplex MAC for the Next Generation WLAN

Yang

et al. 2015

Proceedings of the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustn

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Abstract-IEEE 802.11 wireless local area network (WLAN) has been increasingly developed over several decades. It requires four times throughput improvement in the next generation WLAN. Thus, researchers focus on the co-frequency co-time full duplex technology, which makes the devices transmit and receive packets simultaneously and theoretically doubles the throughput. Some existing works proposed several media access control (MAC) protocols on the assumption that all nodes have full duplex capability. However, it is more practicable that only AP possesses full duplex capability whereas STAs have no full duplex capability in the early stage of introducing full duplex technology into the next generation WLAN. In this paper, a simple and compatible full duplex MAC protocol named FuPlex is proposed. The design details of FuPlex, including primary access, secondary access and data transmission, are introduced. Simulation results show that FuPlex improves the throughput to 150% compared with legacy IEEE 802.11 MAC protocol.

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Section: Introductionmentioning

confidence: 99%

FuPlex: A Full Duplex MAC for the Next Generation WLAN

Yang

et al. 2015

Proceedings of the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustn

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“…The most significant capacity bottleneck reasons can be considered to be as the increasing smart phone usage, the availability of flat-rate voice and data bundles, and services offering video streaming and higher demand for entertainment services and applications. Operators are thus looking for flexible and cost-effective network management solutions to overcome the capacity bottlenecks especially in high contention traffic scenarios [1]. Furthermore, there is also greater competition among mobile operators for servicing their subscribers with better Quality-of-Experience (QoE) in order to increase their subscriber database.…”

Section: Introductionmentioning

confidence: 99%

“…The increasing popularity of Wi-Fi has also an effect on mobile operators where most of the operators are driving forward with plans to extensively utilize them inside their networks as Carrier Wi-Fi Access Points [1]. Wi-Fi offloading is a key technology to relieve the pressure from data tsunami on cellular networks.…”

Section: Introductionmentioning

confidence: 99%

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Connectivity management using multiple attribute decision making in heterogeneous networks

Zeydan

Tan

Karatepe

et al. 2015

2015 International Symposium on Wireless Communication Systems (ISWCS)

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Flexible network management solutions for heterogeneous networks have attracted increasing attention for operators in order to meet the today's exponential network traffic demands. Over decades, mobile operators have been developing and deploying new heterogeneous systems into their infrastructures. However, converging the cellular networks with heterogeneous devices such as Carrier Wi-Fi still remains a challenging task for mobile carriers. In this study, a connectivity management platform integrated with a multiple attribute decision making algorithm for efficient Wi-Fi Offloading in heterogeneous wireless networks is presented. To enable this platform, several terminal and network level attributes are periodically collected and sent to the connectivity manager inside operator's network. The connectivity manager runs a multiple attribute decision making algorithm and the decision on the best access network connection is sent back to terminals for execution. The proposed platform can be deployed to mobile operator networks for centralized heterogeneous network management.

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“…A discussion on licensed-assisted access (LAA) via unlicensed spectrum [5] might accelerate the convergence between licensed and unlicensed band access by effective switching and aggregation. More aggressive convergence is expected to improve the performance of unlicensed band access in the future wireless environment while ensuring coexistence with conventional WLAN devices [6]. When many wireless nodes communicate in the unlicensed band, the hidden terminal problem directly degrades throughput.…”

Section: Introductionmentioning

confidence: 99%

User Equipment Centric Downlink Access in Unlicensed Spectrum for Heterogeneous Mobile Network

Kudo

Abeysekera

Asai

et al. 2015

IEICE Trans. Commun.

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SUMMARY Combining heterogeneous wireless networks that cross licensed and unlicensed spectra is a promising way of supporting the surge in mobile traffic. The unlicensed band is mostly used by wireless LAN (WLAN) nodes which employ carrier sense multiple access/collision avoidance (CSMA/CA). Since the number of WLAN devices and their traffic are increasing, the wireless resource of the unlicensed band is expected be more depleted in 2020s. In such a wireless environment, the throughput could be extremely low and unstable due to the hidden terminal problem and exposed terminal problem despite of the large resources of the allocated frequency band and high peak PHY rate. In this paper, we propose user equipment (UE) centric access in the unlicensed band, with support by licensed band access in the mobile network. The proposed access enables robust downlink transmission from the access point (AP) to the UEs by mitigating the hidden terminal problem. The licensed spectrum access passes information on the user data waiting at the AP to the UEs and triggers UE reception opportunity (RXOP) acquisition. Furthermore, the adaptive use of UE centric downlink access is presented by using the channel utilization measured at the AP. Computer simulations confirm that licensed access assistance enhances the robustness of the unlicensed band access against the hidden terminal problem. key words: heterogeneous network, CSMA/CA, unlicensed spectrum, wireless LAN, RXOP, hidden terminal problem

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An advanced Wi-Fi data service platform coupled with a cellular network for future wireless access

Cited by 11 publications

References 5 publications

FuPlex: A Full Duplex MAC for the Next Generation WLAN

FuPlex: A Full Duplex MAC for the Next Generation WLAN

Connectivity management using multiple attribute decision making in heterogeneous networks

User Equipment Centric Downlink Access in Unlicensed Spectrum for Heterogeneous Mobile Network

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