Enabling DevicetoDevice Communications in MillimeterWave 5G Cellular Networks
Báo cáo hóa học: " Research Article Cross-Layer Handover Scheme for Multimedia Communications in Next Generation Wireless Networks" potx
... algorithm providing better performance to the multiinterface terminals in the integrated networks can be found in [18] 3.2.4 SIP and MIP Bing Update After sending UNA to the NAR for announcing its existence, ... For achieving the fast handover procedure, cross-layer schemes have been investigated widely Among them, some use MIH to facilitate handover while others not In [12], an integrated mobility scheme ... deleted in FASM, and thereby the signaling load can be reduced The MN obtains the network’s neighboring information by the MIH Get Information request/response messages, and stores the information...
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Báo cáo hóa học: " Research Article Class-Based Fair Code Allocation with Delay Guarantees for OVSF-CDMA and VSF-OFCDM in Next-Generation Cellular Networks" ppt
... algorithm in meeting the delay and rate requirements of calls The CRD metric prioritizes the flows for dynamic bandwidth allocation and ensures fairness in terms of both delay and rate Delay and rate guarantees ... are again determined by considering the time domain codes as the root codes and they would be C(1, 0) and C(0, 0) for calls A and B, respectively The constraints on OVSF code assignment in VSF-OFCDM ... an available free code C(m, k) for call i on line On lines to 18, the time domain and frequency domain codes are determined On lines and 3, an initial assignment of time domain code is made so...
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báo cáo hóa học:" Multiple access communications in future-generation wireless networks" potx
... “Polarization Division Multiple Access With Polarization Modulation for LOS Wireless Communications by Bin Cao, Qin-Yu Zhang, and Lin Jin discusses a potential multiple access and modulation ... Multiple access communications in future-generation wireless networks Norman Abramson1, Claudio Sacchi2, Boris Bellalta*3 and Alexey Vinel4 Department of Electrical Engineering, University ... orthogonality among training sequences and introduce multiple access interference (MAI) To reduce the effect of the MAI, the authors find the CAZAC sequence that maximizes the signal-to-interference ratio...
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Báo cáo hóa học: " Research Article Modeling of Call Dropping in Well-Established Cellular Networks" ppt
... normally terminated calls (i.e., not-dropped-calls in operator database) and of dropped calls, distinguishing two phases: ringing and conversation (see Figure 2) The duration of the ringing phase ... new modeling of the call dropping process Using statistical tools on measured data from a real network, we have characterized dropped calls and call durations (distinguishing between ringing ... Pattavina and A Parini, “Modelling voice call interarrival and holding time distributions in mobile network,” in Proceedings of the 19th International Teletraffic Congress (ITC ’05), Beijing, China,...
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Báo cáo hóa học: " Beamforming techniques for enabling spatialreuse in MCCA 802.11s networks" pdf
... receiver [11-13] For example, zero-forcing (ZF) beamforming for interference cancellation has been shown to increase the capacity of ad-hoc networks [14] Beamforming is indeed a promising approach ... allocated in the future Because each STA advertises its reserved TXOPs, both the CSI and the timing information for enabling beamforming may be obtained A Beaconing and synchronization With the MCCA ... challenge lies then in acquiring the channel and synchronization information in such a decentralized network without change in the MAC protocol In this paper, we show how beamforming techniques can...
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Báo cáo hóa học: " An analytical model for the intercell interference power in the downlink of wireless cellular networks" ppt
... estimate of the pdf of the interference power, for different values of the shadowing standard deviation, sdB Based on these estimates, we then propose an analytical statistical model of the interference ... a semi -analytical method for the estimation of the pdf of the intercell interference power in a multicellular network when the combined propagation effects of path loss, Rayleigh fading and lognor-mal ... of the contribution of the highest interference gains of the N - M non-compelled interfering links in the probability set {δ j }, we suggest the following work around: in these links, we intentionally...
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Báo cáo hóa học: " Research Article Titan: An Enabling Framework for Activity-Aware “Pervasive Apps ” in Opportunistic Personal Area Networks" pptx
... Titan allows for the inclusion of such techniques into an activity-aware system Combining these techniques with Titan further supports our objective of deploying activity-aware Pervasive Apps in ... standards for accessing, describing, and composing services in a globally connected network of thousands of sensors, actuators, and processing units Titan provides dynamic mechanisms allowing ... Computing, vol 8, no 2, pp 49–56, 2009 G Fortino, A Guerrieri, F L Bellifemine, and R Giannantonio, “SPINE2: developing BSN applications on heterogeneous sensor nodes ,” in Proceedings of the IEEE International...
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Báo cáo hóa học: " Research Article A Fluid Model for Performance Analysis in Cellular Networks" doc
... its arguments (mean and standard deviation) This point is rarely raised in literature: analysis and Monte Carlo simulations can lead to quite different outage probabilities even if analytical average ... Given that there are already n, these curves give the probability that a new user, initiating a new call at a given distance, implies an outage As an example, a new user in a cell with already 16 ... probability and the spatial outage probability with the Gaussian approximation Closed-form formulas for the mean and standard deviation of fu over a cell are provided Quality of service in cellular networks...
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Báo cáo hóa học: " Research Article Efficient Key Agreements in Dynamic Multicast Height Balanced Tree for Secure Multicast Communications in Ad Hoc Networks" doc
... generate a group key (GKi ) for each cluster member to ensure secure multicast communications Dynamic Multicast Height Balanced Tree In ad hoc networks, mobile nodes join or leave networks dynamically, ... interregion keys to perform secure multicast communications Secure Multicast Communications This section describes the secure operations for multicast communications in MANETs Figure 10 presents a multicast ... grouping or clustering issues for reducing traffic overhead and broadcast storm problems of MANETs, reducing the rekeying costs in Figure 2: A elliptic curve with P + Q + R = O key updating and increasing...
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Báo cáo hóa học: " Editorial Cooperative Communications in Wireless Networks" ppt
... 2 EURASIP Journal on Wireless Communications and Networking this protocol, both under an individual and a sum-power constraint assuming perfect channel state information ¨ In the third article, ... delve into the ou appropriate coding schemes for a two-user cooperative communications channel They propose the use of coordinate interleaved trellis codes over QPSK and 8PSK modulations exploiting ... will be very useful in order to select appropriate cooperative techniques for practical realizations of cooperative communications in future wireless communication networks In the second article,...
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Báo cáo hóa học: "Research Article Dynamic Resource Assignment and Cooperative Relaying in Cellular Networks: Concept and Performance Assessment" pot
... introduced dynamic and flexible resource assignment in a relay enhanced cell and cooperative relaying Our performance results indicate that a relay based deployment using the proposed resource assignment ... potential benefits of cooperative relaying we compare the cooperative multiuser MIMO relaying scheme with single-path relaying and a system using only direct links between BSs and MSs (BS only) The ... been standardized for the frequency domain In the case of dynamic resource sharing the resource assignment in frequency domain can simply be done by signaling chunks (subchannels in WiMAX terminology)...
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Báo cáo hóa học: " Research Article Biometric Methods for Secure Communications in Body Sensor Networks: Resource-Efficient Key Management and Signal-Level Data " potx
... for committing, or securely binding, a cryptographic key for secure transmission over an insecure channel More detailed descriptions of this scheme will be given in Section 2.5 Essentially, for ... F M Bui and D Hatzinakos OUR CONTRIBUTIONS The existing research in BSN using ECG biometric can be classified into two major categories: network topology (via clustering formation), and key distribution ... to as INTRAS, being effectively a combination of interpolation and random sampling, which is inspired by [20, 21] The idea is to modify the signal after sampling, but before binary encoding 5.1...
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Báo cáo hóa học: " Cross-Layer Design and Analysis of Downlink Communications in Cellular CDMA Systems" docx
... set and sends back HCM Terminate (b) Proposed soft handoff procedure Figure 6: Soft handoff algorithm and procedure 4.2 Soft handoff One of the major benefits of a CDMA system is the ability of a ... Spain, September 2004 [7] J Yao, T C Wong, and Y H Chew, Cross-layer design on the reverse and forward links capacities balancing in cellular CDMA systems,” in Proceedings of IEEE Wireless Communications ... Umeda, Downlink packet-scheduling considering transmission power and QoS in CDMA packet cellular systems,” in Proceedings of the 4th IEEE International Workshop on Mobile and Wireless Communications...
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Báo cáo hóa học: " Cross-Layer Quality-of-Service Analysis and Call Admission Control in the Uplink of CDMA Cellular Networks" potx
... capacity and leads to the determination of admission region in the uplink of CDMA systems Our analytical work can be further combined with the call level analysis of QoS performances to provide a joint ... cross-layer CAC in CDMA networks Our contribution is that the analytical formulation in this paper leads to the determination of the crosslayer admission region (AR) in the uplink of a CDMA system ... “Performance analysis of multiclass services in the uplink of wideband CDMA, ” in Proceedings of the 8th International Conference on Communication Systems (ICCS ’02), vol 2, pp 692– 696, Singapore,...
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