Results 211 to 220 of about 12,270 (254)

Heterogeneous Wireless Networks

2014
In this chapter, we will review the underlying mechanisms for the evolution of wireless communication networks. We will first discuss macro-cellular technologies used in traditional telecommunication systems, and then introduce some micro-cellular technologies as a recent advance in the telecommunications industry.
Jiannong Cao, Chisheng Zhang
openaire   +1 more source

Time synchronization in heterogeneous wireless networks

2012 IEEE Wireless Communications and Networking Conference (WCNC), 2012
In addition to theoretical study in statistical physics, synchronization in large heterogeneous networks has always been a technology challenge, due to lacking of common infrastructure and interface. However, misalignment of timing can significantly degrade the performance.
Hou-Hsun Lee, Kwang-Cheng Chen
openaire   +2 more sources

Heterogeneous Wireless Networks

2017
This chapter first presents a heterogeneous wireless network which consists of WLANs and cellular macro cell and hyper-dense small cell networks. Second, it describes the scenarios where D2D communication and interworking among these networks can be applied. Each of these scenarios are investigated in detail in the following chapters. Third, achievable
Amila Tharaperiya Gamage, Xuemin Shen
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Roaming Between Heterogeneous Wireless Networks

2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring, 2007
As existing wireless network, system, and standards evolve to beyond 3G capability, the ability to roam between heterogeneous wireless networks becomes increasingly desirable. However, when attempt is made to achieve the vision of seamless handover between heterogeneous wireless networks, a number of formidable barriers appear due to unreasonable ...
Zizhou Wang, Xin Zhang 0001, Hui Lu, Dacheng Yang   +3 more
openaire   +1 more source

Heterogeneous content caching in wireless networks

2017 9th International Conference on Communication Systems and Networks (COMSNETS), 2017
This work develops a cooperative content caching framework for Social Wireless Networks (SWNETs) in which content demands are hierarchically heterogeneous. The heterogeneous request model incorporates user preference for different categories/genres, and contents under each category, both following power law distributions at local as well as global ...
Rui Wang 0115, Faezeh Hajiaghajani, Subir Biswas 0002   +2 more
openaire   +1 more source

Network selection in heterogeneous wireless environments

2011 18th International Conference on Telecommunications, 2011
The evolution of wireless access networks has led to the vision of an integrated heterogeneous wireless environment consisting of various Radio Access Technologies (RATs). In such an environment, users with multimode terminals can seamlessly change from one RAT to another RAT attempting to maximize their satisfaction level, while providers may ...
Pavlos Kosmides, Angelos N. Rouskas, Miltiades E. Anagnostou   +2 more
openaire   +2 more sources

Heterogeneous Multicast Networks with Wireless Helping Networks

2012
Previously, it has been shown that wired infrastructures such as optical networks can improve the capacity of ad hoc wireless networks significantly. However, sometimes these wired infrastructures are too expensive or even infeasible. In this paper, we use wireless helping networks to enhance the throughput performance of ad hoc networks.
Xuanyu Cao, Jinbei Zhang, Guanglin Zhang, Luoyi Fu, Xinbing Wang   +4 more
openaire   +1 more source

Connection Management for Heterogeneous Wireless Networks

Proceedings of the 12th International Conference on Advances in Mobile Computing and Multimedia, 2014
As wireless technologies continue to advance, mobile users have developed a need for ubiquitous accessing to the Internet while roaming among heterogeneous wireless networks. Guaranteeing service continuity requires an effective mechanism to optimally use all available access networks.
Min-Cheng Chan, Chien-Chao Tseng
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A Handover Scheme in Heterogeneous Wireless Networks

2010
In order to achieve seamless handover for real-time applications in the IP Multimedia Subsystem (IMS) of the next-generation network, a multi-protocol combined handover mechanism is proposed in this paper We combine SIP (Session Initiation Protocol), FMIP (Fast Mobile IPv6 Protocol) and MIH (Media Independent Handover) protocols by cross-layer design ...
Yuliang Tang, Ming-Yi Shih, Chun-Cheng Lin, Guannan Kou, Der-Jiunn Deng   +4 more
openaire   +2 more sources

Heterogeneous wireless networks for reliable communications

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009
This paper introduces the latest status of our undergoing project aiming at reliable communications by heterogeneous wireless networks. This project is one of the new Research and Development (R & D) projects in Japan to attain the efficient use of the precious and scarce radio spectrum resources.
Toshinori Suzuki, Kanshiro Kashiki, Akira Yamaguchi   +2 more
openaire   +2 more sources