Performance Evaluation of Received Signal Strength Based Hard Handover for UTRAN LTE

Anas, M.; Calabrese, Francesco; Mogensen, Preben; Rosa, Claudio; Pedersen, Klaus I.

doi:10.1109/vetecs.2007.223

Cited by 85 publications

(29 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This phenomenon has been aggravated by unnecessary handovers, which has adverse effect on the system performance [19]. Too many unnecessary handovers may also result in signaling overhead [8,20]. Therefore, to lower the number of handover, we propose an improved handover mechanism by predicting the moving direction of UEs in this work.…”

Section: X2mentioning

confidence: 99%

A moving direction prediction-assisted handover scheme in LTE networks

Wang

Kao

Hsiao

et al. 2014

J Wireless Com Network

View full text Add to dashboard Cite

The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) defines a wireless network standard for high packet transmission rate and low packet latency provisions. Handover is one of the important features for helping user equipments (UEs) to roam between LTE networks. However, LTE networks adapt a make-before-break handover procedure, which may cause a brief disconnection, therefore results in the packet transmission delay and packet loss problems. In this paper, we propose a moving direction prediction-assisted handover scheme for LTE networks to lower the number of handovers. We first track the location of user equipments (UEs) to predict their moving direction. By referencing previous locations, the next moving direction of UEs is estimated with the cosine function in order to determine the candidate E-UTRAN NodeBs (eNBs) for handover. Then, a target eNB is selected from the candidate eNBs through an angle-based dynamic weight adjustment scheme. By selecting a proper target eNB for handover, thus the quality of network transmission can be enhanced. Simulation results demonstrate the ability of the proposed scheme in reducing 17% average handover times, compared with the standard handover procedure, thereby reducing 12% average number of packet loss and 5% average packet delay time.

show abstract

Section: X2mentioning

confidence: 99%

A moving direction prediction-assisted handover scheme in LTE networks

Wang

Kao

Hsiao

et al. 2014

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…There are several traditional strategies for making a handover decision based on different mobility characters, like cost function based proposal [4], which established the cost function models to network selection algorithm; and Bit Error Rate based proposal [11], which analyzes the performance on bit error rate and relative signal strength to make a handoff decision; Received Signal Strength (RSS) based proposal [2], which making a handover decision mainly based on RSS and focus on the hard handover for UTRAN LTE network For the traditional handover decision maker algorithms, typically threshold based decision algorithms are used. These algorithms can cause the "ping-pong" effect.…”

Section: State Of the Artmentioning

confidence: 99%

Automatic Handover Decision in Content Centric Networking

Luo

Eymann

et al. 2012

Information and Communication Technologies

View full text Add to dashboard Cite

Abstract. The current Internet architecture was designed more than 30 years ago for a very different set of services than those used today. Several new architectures have been proposed for a Future Internet to better meet todays and future requirements. Content Centric Networking (CCN) is one of those new architectures gaining worldwide attention by researchers and the focus of this article. CCN is based on naming content instead of hosts allowing routers to cache popular content. It has been shown that CCN can also support point-to-point real-time conversations, for example voice or video calls. However, it has not been defined how node mobility can be achieved in such a real-time scenario with strong time constraints. In this paper a close study to the handover algorithms has been carried out. A handover decision maker, which is based on neuro-fuzzy system (NFS) is proposed and evaluated. The results show that the proposed decision maker meets the design targets.

show abstract

“…There are mainly two existing representative handover decision schemes; One is the RSS based scheme [6], and the other is the load based scheme [7]. The RSS based scheme is based on the RSS from the serving cell and the neighbour- ing cells, so that the scheme selects the eNB with the largest RSS.…”

Section: Handover Decision Schemementioning

confidence: 99%

“…6. The nonlinear function is very helpful because it fully utilizes the nonlinear characteristic of load difference between the target and serving eNBs after handover decision operation by the Hybrid scheme considering 6 The function (f(L)) on the load difference between the target and serving eNBs by the existing load-based adaptive hysteresis scheme and proposed modified load-based adaptive hysteresis scheme after the Hybrid scheme is applied. both the RSS-based handover algorithm and the load-based handover algorithm.…”

Section: Modified Load-based Adaptive Hysteresismentioning

confidence: 99%

See 1 more Smart Citation

A Handover Decision Strategy with a Novel Modified Load-Based Adaptive Hysteresis Adjustment in 3GPP LTE System

Lee

Gil

Kim

2011

IEICE Trans. Inf. & Syst.

View full text Add to dashboard Cite

SUMMARYThis paper introduces a hard handover strategy with a novel adaptive hysteresis adjustment that is needed to reduce handover drop rate in 3GPP long term evolution (LTE). First of all, we adopt a Hybrid handover scheme considering both the received signal strength (RSS) and the load information of the adjacent evolved Node Bs (eNBs) as a factor for deciding the target eNB. The Hybrid scheme causes the load status between the adjacent eNBs to be largely similar. Then, we propose a modified load-based adaptive hysteresis scheme to find a suitable handover hysteresis value utilizing the feature of the small load difference between the target and serving eNBs obtained from the result of the Hybrid scheme. As a result, through the proposed modified load-based adaptive hysteresis scheme, the best target cell is very well selected according to the dynamically changing communication environments. The simulation results show that the proposed scheme provides good performance in terms of handover drop rate. key words: Handover decision strategy, adaptive handover hysteresis, hybrid scheme, load balancing, handover drop rate

show abstract

Performance Evaluation of Received Signal Strength Based Hard Handover for UTRAN LTE

Cited by 85 publications

References 7 publications

A moving direction prediction-assisted handover scheme in LTE networks

A moving direction prediction-assisted handover scheme in LTE networks

Automatic Handover Decision in Content Centric Networking

A Handover Decision Strategy with a Novel Modified Load-Based Adaptive Hysteresis Adjustment in 3GPP LTE System

Contact Info

Product

Resources

About