... 2011 Printed in India A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Advancesin Vehicular Networking Technologies, ... cell crossing time lasts since the vehicle enters the wireless cell in Pin at tin, and then exits the wireless cell in Pout at tout, respectively During ∆T interval, the vehicle is crossing the ... the time interval ∆T = tout — tin is: Δx = v ΔT (1) From (1) we can introduce the Cell Crossing Time [s] parameter, according to the following assessment, such as: Definition (Cell Crossing Time)...
... inter-symbol interference (ISI) and degrades the system performance This problem will be more severe in inter-vehicle communication as maintaining synchronization in fast moving nodes is very difficult In ... PLrd (29) 38 Advancesin Vehicular Networking Technologies and h N0 = N0 + k2 r PLrd (30) The detected data in frequency domain is then transformed back to time domain by using inverse discrete ... be increased to maintain the spectral efficiency which then reduces the performance gain over non-cooperative single-input single-output (SISO) scheme Asynchronous Cooperative Protocols for Inter-vehicle...
... Networking Technologies 2.1 Description of the involved technologiesIn this subsection we describe the technologies involved in the process of collection information from devices, rst detailing ... Based Gossiping for VANETs in an Intersection Scenario, 4th International Conference on Networked Computing and Advanced Information, Gyeongju, Korea Efficient Information Dissemination in VANETs ... deviation ey in metre 68 Advancesin Vehicular Networking Technologies Fig Error measurement of lateral deviation in driving direction For the evaluation of satellite based applications in rail transport...
... 82 Advancesin Vehicular Networking Technologies information into a cloud of services In this sense, from lower layer related protocols we now move into solutions which were defined to integrate ... within a single pulse Fig.2-3 (b) shows that there is a recognizable Doppler shift in frequency domain To detect the Doppler on the basis of a 106 Advancesin Vehicular Networking Technologies single ... UE update (MIH_Get_Info.request), it gets a 90 Advancesin Vehicular Networking Technologies Fig Signaling diagram URI is constructed from through the vehicle ID as explained in Fig (*Mechanical...
... frequency hopping, channel coding, modulation, and signal processing 134 Advancesin Vehicular Networking Technologies The received power Pr in Equation (1) is characterized by large-scale fading and ... dB 140 Advancesin Vehicular Networking Technologies 4.1.2 Effects of timeout In this subsection, we investigate the influence of the MAX_TIMEOUT parameter on the performance As mentioned in subsection ... the route towards a destination BU The neighbor unit id is contained in the MAC header Note that the unit maintains only the next-hop routing state, which provides the routing protocol with a high...
... 142 Advancesin Vehicular Networking Technologies discover a route since the BU started broadcasting the routing information End-to-end delays are determined using position reporting packets ... level 144 Advancesin Vehicular Networking Technologies of Route dropped to 5, which was the same as Route At this point a route change occurred since MU0 selected Route again All the remaining packets ... Routing in Wireless Sensor Networks, MILCOM Proceedings on Communications for Network-Centric Operations: Creating the Information Force, McLean, VA, 2001 148 Advancesin Vehicular Networking Technologies...
... second line of equation (14) and equations (15) and (8) The following cases are obtained by induction using again the second line of (14) in conjunction with (9) Now, using the first line of equation ... strategy In fact, since the channels are assumed to be slow fading, if the direct link is in outage in the first slot of the frame, it will be the case in the second So it is better not to transmit in ... performance by minimizing the outage probability of the channel at high SNR We underlined that the need of such an optimization increases with the increasing quality difference within the links (source-relay...
... setup CTS Last bit departure (b) AP processing time AP processing time Flying time 224 Advancesin Vehicular Networking Technologies As shown in Fig 5(a), in case the RTT is measured, the last bit ... channel in terms of traffic Fig MMAC-CR protocol (figure inspired from [timmers07]) 208 Advancesin Vehicular Networking Technologies The proposed protocol is divided into four phases: during phase ... if they detect a PU 210 Advancesin Vehicular Networking Technologies occupation in a channel, they reply with a pulse in the specified time slot during CHRPT (signalling occupied channels seen...
... network in Data Forwarding in Wireless Relay Networks 241 figure RS1 receives all the packets containing in first frame and stores the MPDUs destining to RS1, RS2, RS3, RS5, and RS6 In second ... as to eliminate the processing in MPDU level Moreover, checking CIDs in MAP also saves unnecessary processing for the data destining to other destinations Before relaying data, BS identifies the ... Without MAP indications, CID-based forwarding scheme performs worst in saving processing and storage overheads, no matter in 2-hop or 5-hop cases (2) In tunnel-based schemes, enabling MAP indication...
... engine-turned off 264 Advancesin Vehicular Networking Technologies Car with engine-turned but not moving Car with engine-turned but not moving and effects of lightning, warnings, radio, windscreen ... Caprini, D.; Facchinetti, T.; Benzi, F & Nolte, T (2009) Experiments on timing aspects of DC-powerline communications, Proceedings of IEEE 278 Advancesin Vehicular Networking Technologies international ... generated by a swinging slider-crank mechanism Our previous findings indicated that the pulse frequency determines the effective generation of the kinesthetic illusion of being pulled In this chapter,...
... terminals (feeding point) The input impedance of an antenna is expressed in terms of its real and imaginary parts as Zin = Rin + jXin , where Zin is the antenna impedance at the input terminals ... terminals a – b, Rin is the antenna resistance at the input terminals a – b, and Xin is the antenna reactance at the input terminals a – b (1) 298 Advancesin Vehicular Networking Technologies Fig ... does not exceed since the aperture efficiency of a single patch begins to drop, as W/L increases beyond 310 Advancesin Vehicular Networking Technologies - To increase bandwidth, increase the substrate...
... significant increase in peak data rates up to 100 Mb/s in downlink and 50 Mb/s in uplink within 20 MHz spectrum leading to spectrum efficiency of Mb/s, increased cell-edge performance maintains site ... Uplink Pilot Timeslot (UpPTS) Seven uplink-downlink configurations are supported with both types (10 ms and ms) of downlink-to-uplink switch-point periodicity In ms downlink-to-uplink switchpoint ... factors including cell throughput and required QoS Scheduling and Quality-of-Service: The purpose of scheduling is to manage the resources in uplink and downlink channels while maintaining the...
... interference coordination, interference prediction and interference cancellation respectively Inter-cell interference coordination Frequency coordination plays important roles in the Inter-cell Interference ... conditions, and can mitigate inter-cell interference in a semi-blind state of source signal and channel information 4.1 Inter-cell interference model Considering the downlink in cell-edge, assume this ... full-knowledge Many inter-cell interference cancellation methods are based on generalized spatial diversity Beam forming is introduced in inter-cell interference cancellation in references By distinguish...
... determined in the 384 Advancesin Vehicular Networking Technologies mixed signals, the limited change of SINRin plays a little effect in SNRout At this time, as the growth of SINRin , SNRout increases ... 0.8 0.6 Score−based (SB) 0.4 MC−blind MC−link−gain−aware MC−interference−aware SB−blind SB−link−gain−aware SB−interference−aware PF−blind PF−link−gain−aware PF−interference−aware Proportional fair ... 0.3 Proportional fair (PF) MC−blind MC−link−gain−aware MC−interference−aware SB−blind SB−link−gain−aware SB−interference−aware PF−blind PF−link−gain−aware PF−interference−aware 0.2 0.1 0 Max...
... 412 Advancesin Vehicular Networking Technologies as for the interfering users in the neighboring cells (resulting in interference coordination) If additionally the modified ... 418 Advancesin Vehicular Networking Technologies subcarriers, while in the time domain DMRS will occupy the 4th SC-FDMA symbol in each slot for the normal CP case, as shown in Fig Fig DMRS in ... that the inter-symbol interference (ISI) and the inter-carrier interference (ICI ) are small and neglectable Therefore, for PDSCH and corresponding DMRS 422 Advancesin Vehicular Networking Technologies...
... 2011 Printed in India A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Advancesin Vehicular Networking Technologies, ... cell crossing time lasts since the vehicle enters the wireless cell in Pin at tin, and then exits the wireless cell in Pout at tout, respectively During ∆T interval, the vehicle is crossing the ... inter-symbol interference (ISI) and degrades the system performance This problem will be more severe in inter-vehicle communication as maintaining synchronization in fast moving nodes is very difficult In...
... of Engineering The University of Nottingham Malaysia Campus Section Advancesin Internal Combustion Engines Chapter Premixed Combustion in Spark Ignition Engines and the Influence of Operating ... experimental database included in excess of 300 test-points Data collected varying the valve timing setting were kept separately 29 30 Advancesin Internal Combustion Engines and Fuel Technologies and ... continue to indicate that the main driver for in- cylinder turbulence is engine speed and that other factors actually exert only a minor influence [12, 20, 21, 46, 47, 57] However, increasing engine...
... February, 2011 Printed in India A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Advancesin Spacecraft Technologies, ... platform of DDTS They pointed Advancesin Spacecraft Technologies out the inertia matrix has tendency to decouple when the mass of the legs increasing, for purpose of increasing the rigidity, and ... include testing docking mechanism, checking buffer characteristics, simulating the dynamic process of two spacecrafts docking on orbit, defining parameters of docking mechanism, re-emerging troubles...
... widely, enabling him to gain his due international recognition Inspired by Ciołkowski, Canders in 1924 wrote “For flight in interplanetary space I am working on the idea of flying, using tremendous ... frequency-selective fading in multipath 62 Advancesin Spacecraft Technologies environments and hence need a substantial amount of fading margin (Kobayashi, 2006) In addition, intense long-delayed ... Graffigny in 1889 However, it was not until the early 20th century that the idea of a 36 Advancesin Spacecraft Technologies solar sail was accurately articulated Solar sailing as an engineering principle...