The cognitive radio literature generally assumes that the functions required for non-cooperative secondary DSA are integrated into a single radio system. It need not be so. In this paper, we model cognitive radio func...
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One of the variations of the Towers of Hanoi puzzle allows for p pegs, and for four pegs the solution to this variation is shown to have a simple structure which can be used to derive an iterative solution to the prob...
ISBN:
(纸本)9780897913485
One of the variations of the Towers of Hanoi puzzle allows for p pegs, and for four pegs the solution to this variation is shown to have a simple structure which can be used to derive an iterative solution to the problem.
We present improved fast deterministic algorithm for integer sorting in linear space. Our algorithm sorts n integers in linear space in Ο(n log log n log log log n) time. This improves the Ο(n(log log n)3/2) time bo...
ISBN:
(纸本)9780898714906
We present improved fast deterministic algorithm for integer sorting in linear space. Our algorithm sorts n integers in linear space in Ο(n log log n log log log n) time. This improves the Ο(n(log log n)3/2) time bound given in [6]. When the n integers in {0,1,…, m - 1} to be sorted satisfying log m ⪈(log n)2+∈, 0 < ∈ < 1, the time complexity for sorting can be further reduced to Ο(n log log n). These results are obtained by applying signature sorting on our previous result[6].
This paper presents an adaptive QoS management scheme to accommodate dynamic variations in network resources, due to the mobility of the users and location-dependent errors. The scheme ensures that satisfactory levels...
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This paper presents an adaptive QoS management scheme to accommodate dynamic variations in network resources, due to the mobility of the users and location-dependent errors. The scheme ensures that satisfactory levels of QoS guarantees are met regardless of the user mobility. QoS adaptation is achieved based on the use of application specific quality satisfaction curves, while enforcing a fair allocation of bandwidth among the competing flows. The performance of the proposed scheme is evaluated and results indicate that the scheme yields fair adaptation under heavy loads.
Audio rendering of mathematical expressions has accessibility benefits for people with visual impairment. Seeking a systematic way to measure participants' perception of the rendered formulae with audio cues, we i...
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Smart healthcare has become a hot research topic due to the contemporary developments of Internet of Things(IoT),sensor technologies,cloud computing,and ***,the latest advances of Artificial Intelligence(AI)tools find...
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Smart healthcare has become a hot research topic due to the contemporary developments of Internet of Things(IoT),sensor technologies,cloud computing,and ***,the latest advances of Artificial Intelligence(AI)tools find helpful for decision-making in innovative healthcare to diagnose several *** Cancer(OC)is a kind of cancer that affects women’s ovaries,and it is tedious to identify OC at the primary stages with a high mortality *** OC data produced by the Internet of Medical Things(IoMT)devices can be utilized to differentiate *** this aspect,this paper introduces a new quantum black widow optimization with a machine learningenabled decision support system(QBWO-MLDSS)for smart *** primary intention of the QBWO-MLDSS technique is to detect and categorize the OC rapidly and ***,the QBWO-MLDSS model involves a Z-score normalization approach to pre-process the *** addition,the QBWO-MLDSS technique derives a QBWO algorithm as a feature selection to derive optimum feature ***,symbiotic organisms search(SOS)with extreme learning machine(ELM)model is applied as a classifier for the detection and classification of ELM model,thereby improving the overall classification *** design of QBWO and SOS for OC detection and classification in the smart healthcare environment shows the study’s *** experimental result analysis of the QBWO-MLDSS model is conducted using a benchmark dataset,and the comparative results reported the enhanced outcomes of the QBWO-MLDSS model over the recent approaches.
Recent debate in the research community has focused around the following question: should the design of routing algorithms for ad-hoc networks be predicated upon the minimization of routing overhead, or the optimizati...
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ISBN:
(纸本)0780365968
Recent debate in the research community has focused around the following question: should the design of routing algorithms for ad-hoc networks be predicated upon the minimization of routing overhead, or the optimization of network paths? The answer to this question depends upon the mobility and traffic characteristics present in the network. It is doubtful that any one approach by itself can be optimal, or even sufficient when there are temporal and spatial changes in the network dynamics. Most proposed solutions have adopt a fixed approach. To address this shortcoming we propose a dynamic cluster-based routing strategy that shifts the characteristics of its routing approach according to localized network dynamics. This is achieved by dividing routing into intra-cluster and inter-cluster components utilizing a strategy that is hybrid in terms of both its route acquisition and path computation approaches. By adapting the cluster organization to node mobility the strategy senses the network and balances optimality and overhead. The reason for doing this is to achieve the best possible performance subject to a wide range of operating environments.
Proposes two distinct cryptosystems based on Rabin's scheme. The first incorporates coding theory and provides encryption only. The second provides simultaneously both private encryption and digital signature for ...
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Proposes two distinct cryptosystems based on Rabin's scheme. The first incorporates coding theory and provides encryption only. The second provides simultaneously both private encryption and digital signature for network users. In the cases where the second scheme provides only encryption or only digital signature, the scheme provides that the bit ratio between plaintext and ciphertext is 1:1, i.e. equivalent to that of the RSA scheme.< >
In this paper we present a multi-cell analytic model for multi-class cellular networks. We investigate the effects subscriber mobility has on bandwidth control strategies when the network supports multiple classes of ...
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ISBN:
(纸本)0780370163
In this paper we present a multi-cell analytic model for multi-class cellular networks. We investigate the effects subscriber mobility has on bandwidth control strategies when the network supports multiple classes of subscribers having different bandwidth requirements. We introduce control strategies from non-mobile networks and examine them in a mobile environment. The expressions for call blocking using these control strategies have product form solutions. This allows us to develop a multi-cell, multi-class, model by generalizing on the Erlang fixed point approximation using generalized multi-rate, multi-class, Erlang loss formulas for each class of traffic. We produce expressions for originating calls lost, hand-off calls lost, forced-termination, and mean channel occupancy for each class of traffic in each cell for different control strategies. The multicell analytic model allows us to investigate the effects of asymmetric loads and mobility patterns in the network. The analytic results are supported by simulation.
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