User-based integrated offloading approach for 3GPP LTE-WLAN network

Ranjan, Shashi; Akhtar, Nadeem; Mehta, Mahima; Karandikar, Abhay

doi:10.1109/ncc.2014.6811351

Cited by 12 publications

(9 citation statements)

References 2 publications

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Section: Related Workmentioning

confidence: 99%

“…Traffic offloading algorithms have been extensively studied recently [2]- [10]. The authors of [2] proposed an integrated offloading algorithm by taking both signal quality and network load into consideration. In [3], an offloading mechanism through the abstraction of software-defined networking (SDN) in the mobile backhaul was proposed in order to provide programmable offloading policies in wireless networks.…”

Section: Related Workmentioning

confidence: 99%

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Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation

Ren

Tung²,

Chen

et al. 2018

IEEE Trans. Veh. Technol.

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IP Flow Mobility (IFOM) enables a user equipment to offload data traffic at the IP flow level. Although the procedure of IFOM-based flow offloading has been specified by 3GPP, how many IP flows should be offloaded and when offloading should be performed are not defined. Consequently, IP flows may be routed to a target access network which has a strong signal strength but with backhaul congestion or insufficient access capability. In this paper, we propose two algorithms, referred to as proportional offloading (PO), and proportional and preemption-enabled offloading (PPO), respectively, for IP flow offloading in hybrid cellular and wireless local area networks. The PO algorithm decides an optimal proportion of IP flows which could be offloaded by considering available resources at the target access network. In the PPO algorithm, both service continuity and network utilization are taken into consideration. Furthermore, a detailed analytical model is developed in order to evaluate the behavior of the proposed algorithms. The analytical model is validated through extensive simulations. The results show that by dynamically adjusting the percentage of traffic flows to be offloaded, PO can reduce blocking probability and increase resource utilization. PPO further improves the performance at the cost of slightly higher offloading overhead.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation

Ren

Tung²,

Chen

et al. 2018

IEEE Trans. Veh. Technol.

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“…An incorporated offloading method was presented in [4] which consider both the network load and signal quality. The main focus was on finding a solution that did not involve modifying the available network designs and standards.…”

Section: Related Workmentioning

confidence: 99%

“…HetNets are recognized by overlaying small cells having low power in a macro-cell coverage region that have high power to enhance the cell splitting gains [3]. In other words, such networks occupy the co-existence of the available macro "Base Station (BS)" dependent cellular networks with an adequate number of small cells that have low power and use similar of various Radio Access Technologies (RATs) [4,5]. The selection of small cells depended on various factors, as the cell-site place, number of users who must be served and the backhaul capacity availability.…”

Section: Introductionmentioning

confidence: 99%

Traffic Offloading in LTE System Based Heteroge-neous Networks

Mosleh¹

2017

IJEEE

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The continuous growing developments in the traffic of mobile data limits the data throughput and capacity of cellular networks. "Heterogeneous Networks (HetNets)" are efficient solution to realize such demands. However, in HetNets, the congestion on the overloaded cellular network can be increased when the traffic of data is pushed from a cellular network to the Wi-Fi. In practice, offloading the cellular data traffic to a Wireless Local Area Network (WLAN) depending on the signal quality is a broadly deployed method to solve such problem. The use of Device to Device (D2D) communication further enhances the traffic offloading in WLAN systems and helps to obtain better throughput, end-to-end delay and network load. However, the critical offloading potential and its impacts on the whole performance is not totally understood. In this paper, the offloading of Long Term Evolution (LTE) traffic is presented using a WLAN for voice and video applications. A comparison is performed among two WLAN mechanisms; Distributed coordination function (DCF) and Point Coordination Function (PCF). As well, the effect of adding a D2D technology to the PCF is discussed. The WLAN effectively offloaded nodes at their Signal to Interference and Noise Ratio (SINR) becomes more than a specific threshold. Results presented that the PCF mechanism outperforms the DCF one in terms of packet loss ratio, throughput and the maximum load of the entire network. In addition, the use of a D2D serviced in the PCF helps in further reduction in the network load.

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“…Although the value of signal quality can be obtained easily at a STA, it may lead to an inappropriate or a ping-pong decision because it will fluctuate widely in a short period. The amount of traffic load is another criterion [8] [10]. However, since it is basically collected and managed at the network, a notification mechanism needs to be introduced to obtain the load information at a STA.…”

Section: Related Workmentioning

confidence: 99%

Experimental Analysis of Public Wireless LAN Quality for Moving Users

Morioka¹,

Morihiro²,

Yamada³

et al. 2014

2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)

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Wireless LAN (WLAN) access points (APs) are being installed widely and densely in urban areas as a means of traffic offload for mobile communication terminals such as smartphones. WLAN access can be used in home, office, shopping malls, airports and even in train stations (especially in Japan). Although APs which are installed on platforms of train stations can offer stable and high-speed access to passengers waiting for trains, it may cause unstable or decrease the access speed to passengers who are on board a train. In this paper, we analyze the impact on the quality of experience (QoE) of WLAN access for passengers at a station. We conclude that passengers who are on board a train should not use WLAN APs which are installed on platforms since WLAN access cause severe degradation in such QoE for the passengers.

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User-based integrated offloading approach for 3GPP LTE-WLAN network

Cited by 12 publications

References 2 publications

Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation

Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation

Traffic Offloading in LTE System Based Heteroge-neous Networks

Experimental Analysis of Public Wireless LAN Quality for Moving Users

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