... ra-dio networks involving hybrid networking and access tech-nologies are envisioned in 3G+ systems. In such systems, radio resourcemanagement (RRM) plays a major role in the provision of QoS ... research inter-ests are in the area of radioresourcemanagement techniques andMAC and signaling layer protocols for high-speed wireless-accessnetworks using OFDMA/CDMA technologies including 3G ... interests are in general wireless communication, mobile networks, and system per-formance analysis; and in particular QoS-aware radio resource management, joint study of wireless physical/link...
... RRC (radio resource controller)is located. A RRA collects information on radio resourcesand supervises the MAC and PHY functions including powercontrol. A RRC collects radioresource information ... between neighboring BSs within the network.We use RRM to refer to both radioresource management and radioresource managers. If dynamic FFR is deployed in the system, designated neighboring BSs of ... neighboring cell at a particularcell-edge user, the two BSs (serving BS as well as thedominant interfering BS) are coordinated such thatthe dominant neighboring BS will not use a certainquantity...
... A, 3 km/hselective combining and increasing the number of received radio links provides reduction in the transmitted power in- dependently of the combining technique. In Figure 8, for the reference ... combining concept consists of re-ceiving redundantly the same information bearing signalover two or more fading channels, and combine these mul-tiple replicas at the receiver in order to increase ... combining (SC) and maxi-mal ratio combining (MRC).4.1. Selective combiningFigure 4 shows a scheme of how selective combining oper-ates at the receiver side. With SC the path/branch yieldingthe...
... found in the “Managing Resource Pools” section of the vSphere ResourceManagement Guide [2].Understanding Memory ResourceManagement in VMware® ESX™ ServerW H I T E P A P E R VMware, Inc. ... guest operating system running inside the SPECjbb, kernel compile, and Swingbench virtual machines was 64-bit Red Hat EnterpriseLinux5.2Server.TheguestoperatingsystemrunninginsidetheExchangevirtualmachinewasWindowsServer2008. ... only)Fromthisgure,itisseenthatwhenthevirtualmachinememorylimitdecreasesbeyond2816MB,thethroughputofSPECjbbdegradessignicantly in bothballooningandswappingcases.Whenthememorylimitisreducedto2048MB,thethroughputlossesare89percentand96percentforballooningandswappingrespectively.SincetheconguredJVMheapsizeis2.5GB,theactualvirtualmachineworkingsetsizeisaround2.5GBplusguestoperatingsystemmemoryusage(about300MB).Whenthevirtualmachinememorylimitfallsbelow2816MB,thehostmemorycannotbacktheentirevirtualmachine’sworkingset,sothatvirtualmachinestartstosuerfromguest-levelpaging in theballooningcasesorhypervisorswapping in theswappingcases.Since SPECjbb is an extremely memory intensive workload, its throughput is largely determined by the virtual machine memory hit rate. In this instance, virtual...
... Samarati ,323 Preserving Privacy in On-line Analytical Processing Data Cubes Lingyu Wang, Sushi1 Jajodia, Duminda Wijesekera ,355 Part V Security in Emerging Data Services Search on ... Trusted Operating Systems There are many commercial (untrusted) operating systems, e.g., MS-DOS and the original Unix operating system, that do not have a well-defined structure. In MS- DOS, ... implemented using only those operations that are provided by lower layers. Secure Data Managementin Decentralized Systems Secure Data Management in Decentralized Systems edited by Ting Yu...
... Activities2.1.2.2.Unlicensed BandLicensed Band3.Inter-Domain RadioResource Management 3.1.3.2.3.3. Radio Resource Broker Concept Resource Usage Optimization Radio Resource Redistribution4.Workload Characterization4.1.4.2.MeasurementEmpirical ... existing, policing can be removed fromthe data path, giving reduced latency and complexity [42].(ii) Packet classifying, queueing and schedulingPacket classifying, queueing and scheduling are ... shaping,policing, pricing, packet classifying, queueing and scheduling. In mobileand wireless environments, error control and ah hoc routing are also veryimportant issues.(i)Trafficshaping,...
... immunization including inadequatefinancing, poor vaccine quality, poor vaccination prac-tices, and weak health care systems [7] but one of the mostcommon general barriers to improving immunizationrates ... issues as well as train-ing programs at the local levels to enhance human resource management capacity. Issues relating to financialconstraints, infrastructure and poor working environmentmust ... for human resource managementin the health facilities. The doctor isappointed by the head of the policlinic, and the head ofthe policlinic is appointed by the Ministry of Property Management. ...
... decliningwith increasing of visited number n(s, a), and tempera-ture Tsnegative exponential declining with increasing ofvisited number n(s), wherens=a∈Ans,a.3.3. Fast resource management: ... resource management. In addition, large density of femtocells deployment can alsobring a gain of improved joint fast resource management. Here, we only consider the downlink transmission. In the ... Frequency reuse techniques for attaining both coverageand high spectral efficiency in ofdma cellular systems, in WCNC 201011. R Sutton, A Barto, Reinforcement Learning: An Introduction (MIT Press, 1998)12....
... interfering channels are still NLOS.Also, RSs within the studied cell can be scheduled tominimize co-channel interference. Interfering RSs in other cells, uncoordinated with transmissions in ... transmit beamforming methods. Also,the use of MH relaying shortens the hop distances,which increases the SINR. So although scattering isreduced, SINR is increased. Increasing the SINR pro-vides ... is slightlybeneficial since the increase in SINR afforded by shorten-ing the hop distances increases the MIMO gain. In Figure8b, with spatial reuse, RNetcontinuously increases withthe number...
... each link,Tm(i), observed in the ith frame. The interference channelgains gnm,kfrom the transmitting node of link n to thereceiving node of link m are estimated from the IA message. In order ... impact of transmission on linkn using resource k to the other cell links, we need to firstdetermine the interference contribution from the links in Lsto other cell links. T his is denoted by ... optimal, taking the instantaneous stateof all links into account. In practice, not all the interferencemessages will be heard. Then the decisions will take only localinformation into account in the...
... power interferingdue to shadowing effects In this section, we investigate the impact of nonequal in- terfering powers caused by shadowing on the optimal an-tenna spacings. This amounts to include ... will bring in- sight into the structure of the optimal array, which can be tosome extent generalized to a mobile scenario. In fact, in mo-bile systems or in case the position of users and interferers ... spacings; similar results can be attained by analyzingthe interference power (not shown here).6. CONCLUSION In this paper, we tackled the problem of optimal design oflinear arrays in a cellular...
... loading strategies in OFDM-based transmission systems, ” in Proceedings of the 17thIEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC ’06), pp. 1–5, Helsinki, ... water-filling procedure.We prove that the algorithm is efficient in any time-dispersive channel starting with some transmit SNR value.It is interesting that in a truncated radio channel suggested in ... Cioffi,“DualQosload-ing algorithms for multicarrier systems offering different CBRservices,” in Proceedings of the 9th IEEE International Sympo-sium on Personal, Indoor and Mobile Radio Communications(PIMRC...
... energy management in embedded systems, ” Computing & Control Engineering,vol. 14, no. 5, pp. 36–40, 2003.[8] E Y. Chung, L. Benini, and G. de Micheli, “Dynamic power management using adaptive ... Reinforcement Learning Scheme forD ynamic Power Managementin Embedded Systems Viswanathan Lakshmi Prabha1and Elwin Chandra Monie21Department of Electronics and Communication Engineering, ... G. Barto, Reinforcement Learning: An In- troduction, MIT Press, Cambridge, UK, 1998.[10] C. H. C. Ribeiro, “A tutorial on reinforcement learning tech-niques,” in Proceedings of International...
... transmitted power during the K probings.Inserting (43) into (42), we obtain that in the case of us-ing optimal orthogonal weighting matrices, the expressionfor optimal weighting coefficients can ... their linear combining is developed and studied.Keywords and phrases: antenna array, downlink channel, channel estimation, training sequence.1. INTRODUCTION In recent years, transmit beamforming ... their linear combining isproposed using the so-called best linear unbiased estima-tion (BLUE) approach. The effect of such a combining onthe performance of downlink channel estimation is investi-gated.Downlink...