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- Power-Control-Based Band Allocation in Multiband CDMA
- Multiband CDMA is useful for constructing DS-CDMA (CDMA) systems over a non-contiguous spectrum. The method by which users are assigned to their respective frequency bands, termed 'band allocation', is an important part of assuring good performance in multiband CDMA systems. This paper proposes a novel approach to band allocation based...
- White papers
- Performance Modeling and QoS Evaluation of MAC/RLC Layer in GSM/GPRS Networks
- A continuous time Markov chain model is used in this paper to analyze the GSM/GPRS MAC/RLC layer function and compare the performance of three different channel allocation algorithms. Using simulation, the analytical model is verified. The results show that both the data source characteristics such as degree of burstiness and...
- White papers
- A Bandwidth Allocation Model With High Concurrence Rate in IEEE 802.16 Mesh Mode
- In this paper, a bandwidth allocation model is proposed for multi-hop Wireless Mesh Network (WMN) with a goal of achieving high traffic throughput in minimal scheduling time slots. Scheduling scheme based on the optimization model serves the centralized scheduling first and compresses the scheduling time to minimum by enhancing concurrence...
- White papers
- Automatically Capture IMS Database Allocation Information
- The Automatic Delete/Define (DRAMS) utility is a stand-alone utility included with BMC Recovery Manager for IMS. DRAMS can be used both at the home and disaster recovery sites to capture allocation information on the IMS databases. This webcast will explain how to use DRAMS to capture allocation information and build...
- Webcasts
- Address-Value Delta (AVD) Prediction: Increasing the Effectiveness of Runahead Execution by Exploiting Regular Memory Allocation Patterns
- While runahead execution is effective at parallelizing independent long-latency cache misses, it is unable to parallelize dependent long-latency cache misses. To overcome this limitation, this paper proposes a novel technique, Address-Value Delta (AVD) prediction. An AVD predictor keeps track of the address (pointer) load instructions for which the arithmetic difference...
- White papers
- Utility-Based Joint Physical-MAC Layer Optimization in OFDM
- In this paper, joint physical-MAC layer optimization in OFDM systems using adaptive modulation and subcarrier allocation is investigated based on utility theory. Since utility qualifies the level of users' satisfaction derived from the radio resources they occupy, it is ideal for a network optimization metric. The paper formulates cross-layer optimization...
- White papers
- Since Turning to Primavera, AT&T Wireless' Mobile Media Services Is Realizing New Efficiencies in Tracking Projects and Better Allocation of Resources
- Formed in 2001 and based at AWE headquarters in Redmond, Wash., Mobile Media Services (MMS) is a wholly owned subsidiary of AT&T Wireless (AWE). The company wanted to establish efficiencies, help managers understand the budgeting process, and better allocate their resources. To meet its project portfolio management needs, MMS chose...
- Case studies
- Optimal Resource Allocation for OFDM Multiuser Channels
- In this paper, a unifying framework for Orthogonal Frequency Division Multiplexing (OFDM) multiuser resource allocation is presented. The isolated seeming problems of maximizing a weighted sum of rates for a given power budget P and minimizing sum power for given rate requirements R can be interpreted jointly in this framework....
- White papers
- Rate and Power Adaptation in OFDM With Quantized Feedback
- Adaptive modulation can be used in conjunction with Orthogonal Frequency Division Multiplexing (OFDM) to obtain high spectral efficiencies. This paper analyzes two types of adaptive OFDM systems with quantized feedback. In the first type, rate and power allocation algorithm is performed at the transmitter to maximize throughput using quantized Channel-to-Noise...
- White papers
- Architecture and Evaluation of the MIT Roofnet Mesh Network
- This paper describes the design and performance of Roofnet, an 802.11b mesh network for Internet access. Its principle design goal is to allow unmanaged deployment and operation, to better support the growth of community networks with open access policies. This goal has influenced many levels of the design, from the...
- White papers
- Grace Removals Helps Ensure Business-Centric IT Cost and Resource Allocation With Unicenter
- Grace Removals' IT department is located in one branch and supports and maintains a highly distributed computer network. Because of the wide range of computer equipment located in each of the branches and the reliance on manual inventory, the company was experiencing difficulty in maintaining accurate and up-to-date registers. Grace...
- Case studies
- Ministry of Urban Development Protects Critical Data
- The Ministry of Urban Development is responsible for formulating, sponsoring, and supporting housing and urban-development programs in India. The Ministry wanted to automate all processes involved in the allocation of residential units to make the procedure as transparent as possible and facilitate maintenance and ensure records are updated promptly. It...
- Case studies
- Architecture, Engineering, and Planning Firm Gets Resource Allocation on Track
- HNTB used proprietary tools to track resources in each office, but the tools did not work across offices or integrate with other management system components for easy reporting. HNTB wanted a resource allocation tool that would integrate all of its project management tools. HNTB chose Microsoft Office Enterprise Project Management...
- Case studies
- Continuous Resources Allocation in Internet Data Centers
- Internet Data Centers (IDCs) perform multi-customer hosting on a virtualized collection of resources while Grid computing generalizes distributed computing by focusing on large scale resource sharing. When the person consider the problem of resource allocation, the connection between Grid and IDC is obvious. Indeed, both systems are using similar resource...
- White papers
- OVSF Code Allocation in CDMA Based Wireless Ad Hoc Networks
- Wireless ad hoc networks provide a new dimension to computing by allowing a group of portable devices to talk to each other without any additional infrastructure and have been the focus of research in the area of wireless networks. CDMA has been gaining popularity as the multiaccess technique and is...
- White papers
- How Much Do You Really Need: Using Activity-Based Planning & Budgeting for Effective Resource Allocation
- For many public sector organizations, implementing Activity-Based Planning and Budgeting will make a bigger impact or organizational efficiency and effectiveness than Activity-Based Costing. It can be a powerful tool for right-sizing organizations and functions within organizations. ABP/B facilitates resource planning and allocation decisions, enables managers to manage capacity and provides...
- Webcasts
- A Sub-Optimal Joint Subcarrier and Power Allocation Algorithm for Multiuser OFDM
- This paper investigates subcarrier and power allocation in multiuser OFDM. The aim is to maximize the overall rate while achieving proportional fairness amongst users under a total power constraint. Achieving the optimal solution is computationally demanding thereby necessitating the use of suboptimal techniques. Existing sub-optimal techniques either use fixed power...
- White papers
- Session Allocation Manager 2.1 - Optimizing Your HP Blade Workstation Solution Deployment
- This paper describes how Session Allocation Manager (SAM) 2.1 can be used to optimize the HP Blade Workstation Solution deployment, enhancing both manageability and ease-of-use. For example, SAM allows the HP Blade Workstation Solution to be configured so that the user needs to log in only once in order to...
- White papers 2007-10-01
- Allocating and Scheduling Hard Real-Time Tasks on a Parallel Processing Platform
- This paper addresses the issues of scheduling and allocation/configuration of a point-to-point parallel system, for safety-critical hard real-time systems. Three specific topics are considered: an analysable computational model that has sufficient expressive power whilst retaining flexibility for allocation; a scheduling approach that allows the worst case response times for each...
- White papers 2007-12-01
- Modeling TCP in a Multi-Rate Multi-User CDMA System
- Modern CDMA wireless channels support multiple transmission rates, which can be dynamically assigned to users based on traffic demand. However, in practice, assignment of high rate channels comes with the penalty of increased power as well as smaller orthogonal codes, which constrains their assignment to only a subset of active...
- White papers 2007-12-01
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