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Experimental Evaluation of Decision Criteria for WLAN Handover: Signal Strength and Frame Retransmission [chapter]

Kazuya Tsukamoto, Takeshi Yamaguchi, Shigeru Kashihara, Yuji Oie
2006 Lecture Notes in Computer Science  
Therefore, in this paper, by employing FTP and VoIP applications, we compare signal strength and the number of frame retransmissions as a handover decision criterion with experiments in terms of (1) and  ...  Finally, we show the problems of signal strength in contrast to the effectiveness of the number of frame retransmissions as a handover decision criterion.  ...  Acknowledgment This work was supported in part by the Japan Society for the Promotion of  ... 
doi:10.1007/11890348_19 fatcat:7tquni6d2vcnhkxsjqet4jtnfi

Experimental Evaluation of Decision Criteria for WLAN Handover: Signal Strength and Frame Retransmission

K. TSUKAMOTO, T. YAMAGUCHI, S. KASHIHARA, Y. OIE
2007 IEICE transactions on communications  
Therefore, in this paper, by employing FTP and VoIP applications, we compare signal strength and the number of frame retransmissions as a handover decision criterion with experiments in terms of (1) and  ...  Finally, we show the problems of signal strength in contrast to the effectiveness of the number of frame retransmissions as a handover decision criterion.  ...  Acknowledgment This work was supported in part by the Japan Society for the Promotion of  ... 
doi:10.1093/ietcom/e90-b.12.3579 fatcat:nj5czevvdzetla6ouvog6g6haq

A Unified Handover Management Scheme Based on Frame Retransmissions for TCP over WLANs

K. TSUKAMOTO, S. KASHIHARA, Y. OIE
2008 IEICE transactions on communications  
The handover scheme proposed in this study employs frame retransmission over WLAN as an indicator of link degradation, and a handover manager (HM) on the transport layer obtains the number of frame retransmissions  ...  , TCP, frame retransmission, crosslayer, multi-homing An MN employing such a scheme can maintain a TCP connection upon handover between different WLANs.  ...  Handover Decision Criteria Existing handover decision criteria, including the number of frame retransmissions as employed in the proposed model, are evaluated below.  ... 
doi:10.1093/ietcom/e91-b.4.1034 fatcat:clxgg7i74zdkvi3mgxbxubxmna

Handover Management Based on the Number of Frame Retransmissions for TCP Over WLANs

Kazuya Tsukamoto, Shigeru Kashihara, Yuji Oie
2007 2007 4th IEEE Consumer Communications and Networking Conference  
Our proposed scheme employs both a cross-layer approach for obtaining the number of frame retransmissions to satisfy (I) and (III) and multi-homing to satisfy (II).  ...  To achieve seamless and efficient communication, it is necessary for the MNs to satisfy the following three requirements: (I) initiation of handover processes based upon quick perception of the change  ...  Frame retransmission and packet loss Frame retransmission occurs for the following two reasons: (i) reduction of signal strength and (ii) collision with other frames.  ... 
doi:10.1109/ccnc.2007.80 dblp:conf/ccnc/TsukamotoKO07 fatcat:ah7jpcb6ijhabikgbrtpdeoviu

Performance evaluation of a voice call handover scheme between LTE and UMTS

J. Namakoye, R. Van Olst
2011 IEEE Africon '11  
The schemes evaluated were Voice Call Continuity (VCC) for UMTS to LTE handover and Single Radio Voice Call Continuity (SRVCC) for LTE to UMTS handover.  ...  The performance evaluation was done using mathematical models and equations that were derived for the handover service interruption time.  ...  However, most criteria for handover are signal quality, user mobility, traffic distribution and bandwidth utilisation [33] .  Signal Quality handover occurs when the quality of the signal strength falls  ... 
doi:10.1109/afrcon.2011.6072033 fatcat:5dbveurbmjgj7mpfmp3q2zmqfi

Hybridisation of genetic algorithm with simulated annealing for vertical-handover in heterogeneous wireless networks

Shidrokh Goudarzi, Wan Haslina Hassan, Seyed Ahmad Soleymani, Mohammad Hossein Anisi
2017 International Journal of Ad Hoc and Ubiquitous Computing  
In this paradigm, vertical handovers (VHs) are necessary for seamless mobility.  ...  Simulation results presented that choosing the SA rules would minimise the cost function and the GA-SA algorithm could reduce the number of unnecessary handovers, and thereby avoid the 'Ping-Pong' effect  ...  B i and R i are used for the pre-decision stage where they are the available bandwidth (B) and received signal strength (R) of the candidate networks.  ... 
doi:10.1504/ijahuc.2017.10001709 fatcat:pytyyplkgfft5hqyobpaohe7se

Comparison between hybridized algorithm of GA–SA and ABC, GA, DE and PSO for vertical-handover in heterogeneous wireless networks

Shidrokh Goudarzi, Wan Haslina Hassan, Mohammad Hossein Anisi, Seyed Ahmad Soleymani
2016 Sadhana (Bangalore)  
The hybrid algorithm was expected to improve on the pure GA in two ways, i.e., improved solutions for a given number of evaluations, and more stability over many runs.  ...  In this paper, the hybrid algorithm for real-time vertical handover using different objective functions has been presented to find the optimal network to connect with a good quality of service in accordance  ...  signal strength between the networks of nearby WLANs/UMTS, to check whether an access network with a high data rate is offered.  ... 
doi:10.1007/s12046-016-0509-4 fatcat:eii2atht7zd7dce7oqc6xcj6km

Improving mobile IP handover latency on end-to-end TCP in UMTS/WCDMA networks

Chee Kong Lau
2005 Proceedings of the 2005 ACM conference on Emerging network experiment and technology - CoNEXT'05  
Based on the signal strengths and capacity constraints, the RNC makes the decision to handover the MN to the target NodeB [12] .  ...  The UMTS network constantly monitors the MN's radio conditions such as signal strengths and capacity constraints and performs the handover decision.  ...  Appendix I Appendix I Installation of the ns Extensions To be able to use the UMTS/WCDMA mobile extensions to ns presented in this thesis work, it is necessary to replace or modify some files of the  ... 
doi:10.1145/1095921.1095972 dblp:conf/conext/Lau05 fatcat:fjpd5zut4jffhlzvhzi5653dxy

IEEE 802.21-enabled ALIVE-HO for media streaming in heterogeneous wireless networks

Liping Chen, Ahmed H. Zahran, Cormac J. Sreenan
2010 2010 17th IEEE Workshop on Local & Metropolitan Area Networks (LANMAN)  
The proposed framework is implemented and the optimal design value of the application parameter of ALIVE-HO is experimentally determined for video streaming applications under different operating scenarios  ...  The media independent handover standard (IEEE 802.21) enables information exchange across different layers to improve VHO performance.  ...  The authors wish to acknowledge the support of Science Foundation Ireland (SFI).  ... 
doi:10.1109/lanman.2010.5507164 dblp:conf/lanman/ChenZS10 fatcat:sixnxluj2faxhk5vqxt47wfeeq

Vertical Mobility Management Architectures in Wireless Networks: A Comprehensive Survey and Future Directions

Stenio Fernandes, Ahmed Karmouch
2012 IEEE Communications Surveys and Tutorials  
decisions.  ...  Strong business competition for subscribers, along with the ever increasing availability of wireless networks will give nomadic and mobile users the opportunity, and systems the power, to make better handover  ...  They provide good evidence that the number of frame retransmissions can achieve better accuracy in detecting signal degradation than the Received Signal Strength Indicator (RSSI).  ... 
doi:10.1109/surv.2011.082010.00099 fatcat:rljakmudjjartnynbgtsjdm4lm

A Multimedia and VoIP-Oriented Cell Search Technique for the IEEE 802.11 WLANS [chapter]

Ahmed Riadh, Mariam Fliss, Sad Hanafi
2012 Multimedia - A Multidisciplinary Approach to Complex Issues  
The APFH method splits the coverage area of the AP depending on the signal strength in three areas: safe zone, gray zone and handover zone.  ...  Since the switching and waiting delays are greater than the maximum retransmission time of 802.11 frames (4ms), time-bounded packets may be dropped by the MS (not able to acknowledge them).  ...  multimedia-a-multidisciplinary-approach-to-complex-issues/a-multimediaand-voip-oriented-cell-search-technique-for-the-ieee-802-11-wlans  ... 
doi:10.5772/36801 fatcat:44ucdxri3vgvlbfhhjsyy5urkq

Experimental analysis of connectivity management in mobile operating systems

M. Isabel Sanchez, Antonio de la Oliva, Carlos J. Bernardos
2016 Computer Networks  
Moreover, in order to assess how mobility is handled and how this can affect the final user, we perform an exhaustive experimental analysis on application behavior in intra-and inter-technology handover  ...  We are immerse in a world that becomes more and more mobile every day, with ubiquitous connectivity and increasing demand for mobile services.  ...  have evaluated send 802.11 Null Function frames at all times for power management and signaling purposes.  ... 
doi:10.1016/j.comnet.2015.11.021 fatcat:axwmoh5l6rey3edkxzlaaugffi

An Adaptive Multimedia-Oriented Handoff Scheme for IEEE 802.11 WLANs

Ahmed Riadh Rebai, Said Hanafi
2011 International Journal of Wireless & Mobile Networks  
Through simulations and performance evaluation, we show the effectiveness of the new adaptive handoff that reduces the process latency and adds new context-based parameters.  ...  In addition, the problem is further compounded by the fact that limited coverage areas of Access Points (APs) occupied in 802.11 infrastructure WLANs create frequent handoffs.  ...  These errors are very costly in terms of frame loss and performed retransmissions especially for time-bounded applications.  ... 
doi:10.5121/ijwmn.2011.3114 fatcat:ylbrljt6fneopbqtfsuqwfchca

A Novel Multipath-Transmission Supported Software Defined Wireless Network Architecture

Chuan Xu, Wenqiang Jin, Guofeng Zhao, Huaglory Tianfield, Shui Yu, Youyang Qu
2017 IEEE Access  
Moreover, the efficiency and flexibility of MP-SDWN are demonstrated in the performance evaluations conducted on a 802.11 based-testbed, and the experimental results show that compared to regular WiFi,  ...  our proposed MP-SDWN architecture achieves seamless handover and multifold throughput improvement, and supports flow-level wireless transmission control for different applications.  ...  (including signal strength, throughput and load of access points).  ... 
doi:10.1109/access.2017.2653244 fatcat:aly7qlcl2ndp5ay2oaic45yxeu

Cross-layer optimized video streaming in heterogeneous wireless networks

Tiia Ojanperä
2013 ACM SIGMultimedia Records  
The thesis proposes an architecture for end-to-end cross-layer signaling and control for video streaming systems.  ...  The results also support the need for cross-layer signaling and control in facilitating efficient management and utilization of heterogeneous wireless networks.  ...  The handover decision-making of IP mobility protocols, such as MIPv4 and MIPv6, is based on limited criteria that is insufficient for timing the handovers appropriately in order to maintain sufficient  ... 
doi:10.1145/2518140.2518145 fatcat:qxupu6f5jvg4fc5ilhr7xnemfu
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