Results 201 to 210 of about 20,766 (259)
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Dynamic channel assignment with cumulative co-channel interference
ACM SIGMOBILE Mobile Computing and Communications Review, 2004This paper studies the problem of centralized dynamic channel assignment (DCA) in wireless cellular systems under space and time-varying channel demand. The objective is to minimize the number of channels required to satisfy demand while also satisfying co-channel interference constraints.
Karen Daniels +3 more
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Channel segregation based dynamic channel assignment for WLAN
2012 IEEE International Conference on Communication Systems (ICCS), 2012In a frequency reusing wireless local area network (WLAN), the co-channel interference (CCI) environment will change when new access points (APs) join the network. Therefore, the user throughput reduces if the available channels are not properly re-allocated.
Yuki Matsumura +4 more
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Dynamic channel assignment with queueing
[Proceedings] Singapore ICCS/ISITA `92, 1992The authors study the effects of queueing on a dynamic channel assignment scheme. They examine the performance of a queued ordered dynamic channel assignment with reassignment (QODCAR) scheme in a highway microcellular environment using simulations. Results show that queueing can improve the channel utilization and lower the probabilities of blocking a
S.S. Kuek, W.C. Wong
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Efficient distributed algorithms for dynamic channel assignment
Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications, 2002The efficiency of channel assignment in a cellular telephone system is considered using the measures of successful channel assignment ratio as well as response time. Existing paradigms of mutual exclusion and dining philosophers from distributed systems are used to synthesize new algorithms that optimize both measures.
Manhoi Choy, Ambuj K. Singh
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Dynamic Spatial Channel Assignment for Smart Antenna
Wireless Personal Communications, 1999The paper describes an optimal dynamic channel assignment algorithm for smart antennas. This algorithm can deal with the Spatial Division Multiple Access (SDMA) and traditional channel multiple accesses (FDMA, TDMA, or CDMA) simultaneously to enlarge the capacity of communication systems. This algorithm has several merits, including less computer time,
Zhenghe Feng, Zhijun Zhang 0005
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A Dynamic Channel Assignment Algorithm for OFDMA Systems
IEEE Vehicular Technology Conference, 2006In this paper, we propose a heuristic dynamic channel assignment (DCA) algorithm to achieve the tradeoff between system throughput and fairness in downlink OFDMA systems. The proposed algorithm is divided into two stages: first, a proportional fairness is taken into account with quality-of- service (QoS) guaranteed to users for the system to ...
Tien Dzung Nguyen, Youngnam Han
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Distributed dynamic channel assignment in wireless networks
2014 International Conference on Computing, Networking and Communications (ICNC), 2014This paper studies the online channel assignment problem arising in dynamic wireless networks. The goal is to assign channels to communication links such that interference (or the number of conflicts) in the network is minimized. We model the problem as an online edge coloring problem. This problem is NP-hard by a reduction from EDGE COLORING.
Chadi Kari +2 more
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Channel Assignment with r-Dynamic Coloring
2018The channel assignment is an important problem with applications in optical networks. This problem was formulated to the L(p, 1)-labeling of graphs by Griggs and Yeh. The r-dynamic coloring is a generalization of the L(1, 1)-labeling. An r-dynamic k-coloring of a graph G is a proper k-coloring such that every vertex v is adjacent to at least min\(\{d(v)
Junlei Zhu, Yuehua Bu
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Dynamic assignment of random access code channels
GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002In this paper, a measurement-based dynamic RA (Random Access) code assignment procedure Is proposed for prioritized packet data transmission in WCDMA (Wideband Code Division Multiple Access) networks. This dynamic assignment process is based on analytical performance results derived for random packet access under Rayleigh fading in WCDMA networks.
Ekram Hossain 0001 +2 more
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Dynamic channel assignment in wireless communication networks
International Journal of Network Management, 1999We propose a new Cochannel information based Dynamic Channel Assignment lCDCAr strategy for small and microcell systems and a new Group Dynamic Channel Assignment lGDCAr strategy which handles multichannel traffic in wireless networks. Copyright © 1999 John Wiley & Sons, Ltd.
Anna Hac, Chunlei Mo
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