optimum design of branched pipe networks by linear programming

... generation of mobile networks is considered as an integration of the existing cellular networks and wireless LANs with added personalized mobile networks (e.g., WPAN) and broadband radio access networks ... Analysis of Multimedia Mobile Networks with Deterministic Resource Reservation 204 Analysis of Multimedia Mobile Networks with Statistical Local Admission Control 208 7.4.1 7.4.2 Efficiency of the ... Network Optimization of Mobile Networks 211 215 7.5 Traffic Loss Analysis in Multiclass Mobile Networks 217 7.5.1 Application of Multidimensional Erlang-B Formula in Mobile Networks 217 7.5.2 Multirate...

Ngày tải lên: 27/06/2014, 00:20

... and Design of Wireless IP Networks For a listing of recent titles in the Artech House Mobile Communications Series, turn to the back of this book Traffic Analysis and Design of Wireless IP Networks ... 149 x Traffic Analysis and Design of Wireless IP Networks Statistical Analysis of Nonreal-Time Traffic 152 5.4.4 5.4.5 Statistical Analysis of Real-Time Services Genesis of IP-Traffic Self-Similarity ... Analysis and Design of Wireless IP Networks 8.7.7 Hybrid Admission Control Algorithm for Multiclass CDMA Networks 266 8.8 Discussion References 267 268 Performance Analysis of Cellular IP Networks...

Ngày tải lên: 14/08/2014, 14:20

... 24 Traffic Analysis and Design of Wireless IP Networks TE AM FL Y communication) Examples of background applications are e-mail, SMS, download of databases, and reception of measurement records ... retransmission errors or losses by retransmission mechanism because of added delays However, the use of error-recovery and error- 42 Traffic Analysis and Design of Wireless IP Networks concealment techniques ... be capable of gathering information about the user or the environment (e.g., by using a camera or some sensor placed on the front of the 46 Traffic Analysis and Design of Wireless IP Networks mobile,...

Ngày tải lên: 14/08/2014, 14:20

... Analysis and Design of Wireless IP Networks Interference is a consequence of the reuse of the same or adjacent frequency bands in the same or neighboring cells The design of radio networks in ... maintain a per-flow soft state (i.e., flow-specific state) A soft state is a temporary state governed by the periodic expiration of resource reservations Soft states are refreshed by periodical RSVP ... routers of the ISP network All packets that not exceed the negotiated QoS profile are considered as in-profile, while the excess packets are considered as out -of- profile All packets, in-profile...

Ngày tải lên: 14/08/2014, 14:20

... cellular wireless networks may be occupied by an arrival of a new call or a handover call Also, a channel may be released either by ending of the call or by handing the call over to one of the neighboring ... fundamental principles in the design of telecommunication networks, which holds either for wireline or wireless networks: Teletraffic Theory 133 the design of telecommunications networks is based on the ... and Design of Wireless IP Networks The Erlang-B formula has been used throughout the last century, and it continuous to be used today for design and analysis of circuit-switched telephone networks...

Ngày tải lên: 14/08/2014, 14:20

... usually a multiple of 500 bytes This may be explained by the typical size of TCP segments of 512 or 536 bytes, because Web traffic is utilizing TCP on the transport layer For analyses of real-time ... ratio of the number of blocked calls and total number of call attempts Thus, the handover blocking 174 Traffic Analysis and Design of Wireless IP Networks TE 6.3.1.3 WFQ AM FL Y probability of a ... autocorrelation coefficients of TCP traces: (a) correlation coefficients of tcptrace1; and (b) correlation coefficients of tcptrace2 154 Traffic Analysis and Design of Wireless IP Networks same conclusion...

Ngày tải lên: 14/08/2014, 14:20

... with CHard and CSoft Erlang capacity of a cell with hard and soft blocking, respectively, then we may write Relative soft capacity = C Soft − C Hard C Hard (6.27) Soft capacity and soft blocking ... cases [12–14], the moments of initiation of Internet sessions by individual users are also well described by the Poisson process This may be explained by the nature of human behavior (i.e., each ... probability as the ratio of the number of blocked calls and total number of call attempts Thus, the handover blocking probability of a cell is equal to the ratio of the number of rejected handovers...

Ngày tải lên: 14/08/2014, 14:20

... Analysis of Multimedia Mobile Networks 237 for dimensioning and design of the mobile networks There are two main requirements at the design phase of a telecommunications network: High quality of service, ... total number of channels with soft blocking Calculate the maximum offered traffic from the Erlang-B formula in the soft blocking case 234 Traffic Analysis and Design of Wireless IP Networks Divide ... the increase of Erlang capacity by applying soft blocking instead of hard blocking with the same maximum number of channels per cell on average We can approximate uplink soft capacity by using a...

Ngày tải lên: 14/08/2014, 14:20

... control in CDMA networks, due to the specific characteristics of soft handovers and soft capacity 8.7 Admission Control in Wireless CDMA Networks In CDMA networks the quality of ongoing connections ... Average delay of A3 packets as a function of new call intensity in a cell for different A thresholds 256 Traffic Analysis and Design of Wireless IP Networks we notice a decrease of the average ... future wireless IP networks 9.5 Simulation Analysis in Wireless IP Networks In this section we show the results of several experiments on performance analysis of wireless IP networks by using the simulation...

Ngày tải lên: 14/08/2014, 14:20

... degradation of the TCP flow The problem with TCP in mobile networks can be solved in two ways: (1) by adaptation of the TCP to the mobile environment [25–27], or (2) by creation of an efficient ... semi-soft handover through simulation analysis It was shown that hard handover experiences a higher level of packet losses than 296 Traffic Analysis and Design of Wireless IP Networks semi-soft ... The analysis of an error-state of the CBR flow will lead to the same discussion as for the VBR flow In the case of several flows belonging to a same class/subclass, most of the offered solutions...

Ngày tải lên: 14/08/2014, 14:20

... Section 11.3 The choice of the algorithm is a matter of the design approach In other words, the designer of the algorithm should make the choice considering the importance of the following issues: ... telecommunications networks, and graduate courses in wireless multimedia networks and in the design, modeling, and analysis of telecommunications networks He is also an adjunct assistant professor at ... bandwidth of the wireless link The weights assigned to flows in a subclass j are wji, i = 1, …, N, where N is the number of active flows 336 Traffic Analysis and Design of Wireless IP Networks...

Ngày tải lên: 14/08/2014, 14:20

... -current of the reset transistor The output swing of any photodiode based pixel is in the range of - 1.5V So for supply voltages of 3.3V and above the output swing is not limited by back bias of reset ... calculated by dividing the total output noise by the gain of the opamp Alternatively, the output noise due to each transistor can be referred to the input by dividing the output noise by gain of the ... absence of light divided by the integration time Dynamic range: It is ratio of the saturation signal to the root mean square (rms) noise oor of the sensor Fill factor: It is the ratio of light...

Ngày tải lên: 28/08/2014, 02:29

... interior of Ω cl(Ω) closure of Ω |Ω| cardinality of Ω NATIONAL UNIVERSITY OF SINGAPORE SINGAPORE LIST OF SYMBOLS xiii Area(Ω) size of Ω Vol(Ω) hypervolume of Ω In1 (Ω) inner polytopal approximation of ... description of multi-parametric linear programming, we refer the readers to [5] NATIONAL UNIVERSITY OF SINGAPORE SINGAPORE 2.4 Invariant Sets of Constrained Linear Systems 2.4 23 Invariant Sets of Constrained ... approximated by neural networks and the condition of the accuracy of the approximation is given 1.3 Objectives and Scope of the Thesis This thesis attempts to improve and characterize several issues of...

Ngày tải lên: 11/09/2015, 14:29

... and Design of Wireless IP Networks For a listing of recent titles in the Artech House Mobile Communications Series, turn to the back of this book Traffic Analysis and Design of Wireless IP Networks ... 149 x Traffic Analysis and Design of Wireless IP Networks Statistical Analysis of Nonreal-Time Traffic 152 5.4.4 5.4.5 Statistical Analysis of Real-Time Services Genesis of IP-Traffic Self-Similarity ... Analysis and Design of Wireless IP Networks 8.7.7 Hybrid Admission Control Algorithm for Multiclass CDMA Networks 266 8.8 Discussion References 267 268 Performance Analysis of Cellular IP Networks...

Ngày tải lên: 11/10/2016, 23:08

... setting B In this case, the optimal linear minimum length array consists, as obtained by both optimization criteria, by uniform 2.2 λ spaced antennas Optimal design of linear minimal length array leads ... for the out -of- cell interferers is quite accurate when considering large reuse factors as the angular spread experienced by the array is reduced by the increased distance of the out -of- cell interferers ... be attained by analyzing the interference power (not shown here) [3] [5] 0.5 [2] Ergodic capacity (bps/Hz) 4.5 CONCLUSION In this paper, we tackled the problem of optimal design of linear arrays...

Ngày tải lên: 22/06/2014, 19:20

... Click the Design menu > Steel Frame Design > Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure process button, to start the steel frame design G When the design ... Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure button, to start the steel frame design process The program designs the steel members, selecting the optimum ... and design sections match This may take numerous iterations depending upon the complexity of the model H When the analysis and design sections are the same, click the Design menu > Steel Frame Design...

Ngày tải lên: 06/09/2012, 15:56

... unmatched in terms of ease -of- use and productivity Creation and modification of the model, execution of the analysis, and checking and optimization of the design, and production of the output are ... model The design of steel and aluminum frame members features initial member sizing and iterative optimization The design of concrete frame members includes the calculation of the amount of reinforcing ... as linear or nonlinear, depending on how the structure responds to the loading The results of linear analyses may be superposed, i.e., added together, after analysis The following types of linear...

Ngày tải lên: 01/04/2014, 03:20

... computer networks and various forms of information technologies around the world, a partial fulfillment of Bush’s 1945 dream “memex” of a personal microfiche-based system to tackle the problem of information ... the number of countries and institutions attending the conferences Table Participation summary of ICADL conferences ICADL 1998 # of Papers 23 # of Papers from Asia 18 # of Countries # of Countries ... be covered as part of the design, development and use of digital libraries at varying levels of detail, the chapter authors were requested to focus more on the specific area of the respective...

Ngày tải lên: 01/06/2014, 00:46

... requirement of the considered modulations is presented in Table The first part of the table describes bandwidth of linear memoryless alphabets (denoted shortly as Linear A ’) which is solely given by ... = cB’ &cB = cA’ and is excluded by XC with symmetrical XC matrix, again excluded by XOR V Design of ump frequency modulations In this section, we consider non -linear frequency modulations that ... the squared norm of the signal difference of binary alphabet is always for any p The reason is simply given by zero real part of r for any p, as has been mentioned in the proof above, then ||s0(t)...

Ngày tải lên: 20/06/2014, 22:20

... next time of BS bandwidth allocation Intra-zone handoff and inter-zone handoff Moreover, by introduction the idea of zone, two types of handoff between RSs are defined, intra-zone handoff and inter-zone ... (denoted by BW) as well as the threshold of the satisfaction rate (denoted by S_TH) for bandwidth allocation Zone PRSi,j is the visiting probability of the mobile user at RSi, j in the case of the ... probability of the mobile user at each RS is assumed to be obtainable either by user profile data or network modeling techniques The visiting probability of the mobile user at RS RSi, j is denoted by...

Ngày tải lên: 21/06/2014, 03:20