Design and analysis of optimal resource allocation policies in wireless networks

... DESIGN AND ANALYSIS OF OPTIMAL RESOURCE ALLOCATION POLICIES IN WIRELESS NETWORKS BY WANG BANG (M.Eng., B.Eng., HUST, PRC ) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHYLOSOPHY ... delay and delay bound of diﬀerent optimal policies 106 5.7 Policy value of optimal policies with diﬀerent number of available actions 107 5.8 Average delay and delay bound of optimal policies ... the design of optimal resource allocation policies for data services in wireless networks In particular, this thesis investigates the following resource management issues: power allocation, transmission...

Báo cáo hóa học: " Design and Implementation of MC-CDMA Systems for Future Wireless Networks" doc

... eﬃciency of a fully SW implementation and the potential bottleneck represented by intercomponent communications Future Design and Implementation of MC-CDMA Systems 1613 Table 5: Implementation performances ... attributes such as time Future Design and Implementation of MC-CDMA Systems 1607 Complexity analysis, and implementation performances prediction Architectural attributes Feedback for distribution optimisation ... Future Design and Implementation of MC-CDMA Systems mobility Thus, MC-CDMA is nowadays considered as a very promising technique, speciﬁcally for the downlink of the future cellular...

Design and analysis of object replacement policies on dynamic data allocation and replication algorithm with buffer constraints

... of data allocation and replication, a data allocation and replication algorithm solves three fundamental questions: Which object should be replicated? How Chapter Introduction many replicas of ... Chapter Data Allocation and Replication with Finite-size Buffer Constraints 35 Thus, an extra cost of control-message is needed to inform the CCU of the change of the allocation scheme of the object ... Competitive analysis thus falls within the framework of worst-case complexity 4.1.1 Offline and online dynamic data allocation algorithms We begin with a discussion of the concept of an offline dynamic data...

Design and analysis of object allocation and replication algorithms in distributed databases for stationary and mobile computing systems

... insights on designing object allocation and replication strategies for DDBSs In conclusion, our research contribution lies in designing adaptive object allocation and replication algorithms and ... Environments In this chapter, we address the object allocation and replication issues of OMP in DDBSs in the application domain of SCEs Designing an intelligent and eﬃcient object allocation and replication ... one of the main problems is in designing eﬃcient policies to handle on-line requests arriving at the system with a minimum cost and maintain the consistency of multiple replicas of objects in...

the design and analysis of spatial data structures - hanan samet

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Báo cáo hóa học: " Research Article Design and Analysis of an Energy-Saving Distributed MAC Mechanism for Wireless Body Sensor Networks" doc

... can be completely avoided and the lifetime of the BSN can be prolonged Another energy-efficient TDMA-based MAC protocol for wireless BSNs is the BodyMAC [13], which uses flexible and efficient bandwidth ... conditions, an energy-efficiency comparison between DQMAC performance and that of the standard facto 802.15.4 MAC and the BSN -MAC is portrayed BSN -MAC has been selected as a reference benchmark for its ... sensing and backoff periods) Based on that, we propose here a novel DQ -MAC energy-efficiency theoretical analysis for nonsaturation conditions and evaluate its performance in front of 802.15.4 MAC and...

Báo cáo hóa học: " Design and Analysis of Nanotube-Based Memory Cells" ppt

... Res Lett (2008) 3:416–420 design can be employed as memory cells We also develop a continuum model in this paper to analyze the proposed NEMS memory cell design Design of Memory Cells Figure illustrates ... used as a random access memory (RAM) cell It should be noted that Kang and Hwang [16] proposed the similar NEMS design, called ‘Carbon nanotube shuttle’ memory device However, our design is more ... speciﬁc, and we quantitatively illustrate the proposed design as SRAM and DRAM cells In addition, the continuum model developed in this paper will help to study feasibility of large nanotube-based memory...

Báo cáo hóa học: " Research Article Design and Analysis of the First BOWS Contest" potx

... 30.11 Table 5: The ten best results of the BOWS hall of fame, at the end of the two phases of the contest The attacks carried out in the second phase of the contest are the ones with the dates in ... results of the ﬁrst phase of the contest, and the last ﬁve are results of the second phase In Figure a summary of these results is given: the PSNR values between the attacked images and the watermarked ... use of the sensitivity attack during the contest, with particular reference to the second phase In Table 5, the ten best results of the BOWS hall of fame, at the end of the six months of the...

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...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 2 ppt

... proof of Theorem 2. 1.1.) 92 BASIC PROBLEMS AND PROTOCOLS Exercise 2. 9. 12 Let G be a tree Show that, in this case, no Backedge messages will be sent in any execution of DF Traversal Exercise 2. 9.13 ... costs of Flood+Reply, and thus of Shout, are also simple to determine; in fact (Exercise 2. 9 .21 ): T[Flood+Reply] = T[Flooding]+1 Thus M[Shout] = 4m − 2n + (2. 14) T[Shout] = r(s ) + ≤ d + (2. 15) ... above In fact, f is exactly the number of leaves of the df-tree constructed by df − SPT (Exercise 2. 9 .26 ) Expressions 2. 18 and 2. 19, when compared with the costs of protocol Shout, indicate that depth-ﬁrst...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 4 docx

... (Exercise 3.10. 64) Protocol CompleteElect implementing the strategy we have just designed is shown in Figures 3 .43 , 3 .44 , and 3 .45 Let us analyze the cost of the protocol How many candidates there ... two copies of G and remove from both of them the edge e; we then connect these two graphs G and G by adding two new edges e1 = (x , x ) and e2 = (y , y ), where x and x (respective y and y ) are ... Robbins and Kay Robbins [40 ], Paola Flocchini and Bernard Mans [16], and Gerard Tel [43 ] Stefan Dobrev [13] has designed a protocol that allows O(n) election in hypercubes with any sense of direction,...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 6 potx

... 34:372–3 76, 1985 [ 16] D Rotem, N Santoro, and J.B Sidney Shout-echo selection in distributed ﬁles Networks, 16: 77– 86, 19 86 [17] N Santoro, M Scheutzow, and J.B Sidney On the expected complexity of distributed ... 1989 [6] O Gerstel and S Zaks The bit complexity of distributed sorting Algorithmica, 18: 405–4 16, 1997 [7] H.P Hofstee, A.J Martin, and J.L.A van de Snepscheut Distributed sorting Science of Computer ... regardless of the storage requirement, if the initial set is equidistributed (Exercise 5 .6. 33) 3 06 DISTRIBUTED SET OPERATIONS {4, 8} {4, 6} {1, 4} {1, 4} {6} {8} {3} {3} {7} {1} {6} {6} {1, 3}...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 7 docx

... If the result of AND is 1, all the entities have value and are in state minimum, and thus know the result If the result of AND MIN-FINDING AND ELECTION: WAITING AND GUESSING 3 67 is 0, the entities ... the existence and the nature of the trade-off between time and bits Some interesting choices are shown in Figure 6. 27 Examining the trade-off, we discover two important features of protocol DoubleWait: ... the number of bits by using pipeline For example, during every stage of protocol Stages and thus of protocol SynchStages, the information from each candidate must reach the neighboring candidate...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 8 doc

... entity), and we will treat both spontaneous events and the ringing of the alarm clocks as the same type of events and call them timeouts We represent by (x, M) the event of x receiving message M, and ... To understand which properties (and thus restrictions) would sufﬁce we need to examine the proof of Theorem 7.2.1 and to understand what are the particular conditions inside a general distributed ... of Kn into three sets, A, B, and C, of size at least and at most f each; we then set the initial values of the entities in A to Ia , those in B to Ib , and those in C to Ic ; entities a, b, and...

DESIGN AND ANALYSIS OF DISTRIBUTED ALGORITHMS phần 9 pdf

... types of failures Distributed Computing, 2 :95 –103, 198 7 [28] J.Y Halpern and Y Moses Knowledge and common knowledge in a distributed environment Journal of the ACM, 37(3):5 49 587, July 199 0 [ 29] ... proofs for distributed consensus Distributed Computing, 1(1):26– 39, 198 6 [22] M.J Fisher, N.A Lynch, and M.S Paterson Impossibility of distributed consensus with one faulty process Journal of ... Journal of ACM, 43(2):225–267, 199 6 [9] B.S Chlebus, K Diks, and A Pelc Broadcasting in synchronous networks with dynamic faults Networks, 27:3 09 318, 199 6 [10] F Cristian, H Aghili, R Strong, and...

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