Dynamic resource allocation for energy constrained wireless networks over time varying channels

... Abstract Dynamic Resource Allocation for Energy- Constrained Wireless Networks over Time- Varying Channels by Zhang Xiaolu in Department of Electrical ... is on the establishment of a theoretical framework on dynamic resource allocation for energy- constrained wireless networks over time- varying channels This framework chooses the end-user applicat...

Ngày tải lên: 10/09/2015, 15:52

... search for λ In other words, after transforming the original optimization problem into the Lagrangian form, we can find an optimal set of configurations for a particular workload in the larger stochastic ... the stochastic allocation problem can also be used to solve the related known-workload problem For a single workload, simply setting napps = and Pr(1) = for the workload maps...

Ngày tải lên: 21/06/2014, 23:20

... small and energy- limited batteries Examples of such networks include mobile cellular systems, wireless local area networks, wireless ad hoc networks, and wireless sensor networks In these energy- constrained ... SUMMARY Recently, cross- layer design has been identified as a promising approach which achieves good performance for energy- constrained wireless netw...

Ngày tải lên: 30/09/2015, 05:55

... propose cooperative protocols for video transmission to better utilize system resources for performance improvement Moreover, because of the broadcast nature of the phase in cooperative transmission, ... video transmission with side information, we have obtained up to dB gain over the amplify-and-forward or decode-and-forward protocols For the multiuser case, we conce...

Ngày tải lên: 21/06/2014, 20:20

... focused on dynamic allocation and/or controlling either memory allocation or disk bandwidth partitioning among competing workloads Dynamic Memory Partitioning: Dynamic memory allocation algorithms ... estimates for that application for all possible resource configurations We thus obtain a set of resource- to-performance mapping functions, i.e., performance models, one for...

Ngày tải lên: 19/02/2014, 12:20

... and time-demanding for dense local area network deployments Moreover, as we show here, fixed frequency reuse may result in suboptimal system performance By letting the devices locally coordinate ... problem, where the system performance would benefit from allowing more spatial reuse of radio resources in order to obtain higher areal spectral efficiency To this end, interference-aware MA...

Ngày tải lên: 21/06/2014, 05:20

... uniqueness, and global exponential stability of equilibrium point for impulsive BAM neural networks with time-varying delays and reactiondiffusion terms, without assuming the boundedness, monotonicity, and ... stability of BAM neural networks with delays and impulses,” Chaos, Solitons and Fractals, vol 24, no 1, pp 279–285, 2005 [19] Y Zhang and J Su...

Ngày tải lên: 22/06/2014, 19:20

... where Ps and Pr are the total available power at the source and relay node αi and ζi are the nonnegative power allocation parameters for each orthogonal band at the source and relay node, and m ... bands available from the source and the relay are mutually orthogonal In particular, the situation where, among total k channels, there are m channels available for the...

Ngày tải lên: 21/06/2014, 18:20

... the data transmission in parallel during the allocated time slots Adaptive Resource Allocation for VoIP Applications Considering VoIP applications in the collaborative IEEE 802.11/802.16 networks, ... interworking of the IEEE 802.11 and the IEEE 802.16 networks 3.2 QoS Mapping in Collaborative IEEE 802.11 and IEEE 802.16 Networks Supporting QoS is an essent...

Ngày tải lên: 21/06/2014, 11:20

... the sensing and data transmission in accordance with the PRR based time slot allocation, while the PHY layer performs adaptive modulation and coding to allow data transmission rate adaptation At ... action can be taken Sensing information can be a consideration for QoS requirements especially in multimedia application as it can assist C -UWB to dynamically allocate app...

Ngày tải lên: 21/06/2014, 11:20

... A novel modeling for the joint BS/relay assignment, optimum rate allocation, and routing scheme was proposed and formulated under a single problem for the downlink multihop cellular networks ... ←− xK J ←− (i.e., KJ ←− K ) end Algorithm 1: MMKP algorithm for resource allocation in multihop cellular with more valuable ones Therefore, in ADD phase of the algorithm, each ite...

Ngày tải lên: 21/06/2014, 22:20

... suitable for multimedia services To address this disadvantage, we propose an optimal and fair policy for multimedia resource allocation, which introduces a judicious mixture of competition and cooperation, ... paper, we have presented an optimal and fair coopetition strategy for multiuser multimedia RRA Following contributions and conclusions have been made a...

Ngày tải lên: 21/06/2014, 22:20

... coverage area of base stations are adjusted to tackle the large-scale mobility of users For nonreal-time users, QoS is defined as a maximum delay constraint and a required average bit rate Data traffic ... 412–421, Anchorage, Alaska, USA, April 2001 [15] J.-W Lee, R R Mazumdar, and N B Shroff, “Joint resource allocation and base-station assignment for the downlink in CDMA networks,”...

Ngày tải lên: 22/06/2014, 22:20

... coverage area of base stations are adjusted to tackle the large-scale mobility of users For nonreal-time users, QoS is defined as a maximum delay constraint and a required average bit rate Data traffic ... 412–421, Anchorage, Alaska, USA, April 2001 [15] J.-W Lee, R R Mazumdar, and N B Shroff, “Joint resource allocation and base-station assignment for the downlink in CDMA networks,”...

Ngày tải lên: 22/06/2014, 22:20

... develop communication protocols for energy constrained networks to achieve energy efficiency while maintaining good energy- delay tradeoffs We focus on wireless sensor networks as a class of energy constrained ... COMMUNICATION PROTOCOLS FOR ENERGY CONSTRAINED NETWORKS TAN HWEE XIAN (B Computing (Hons), NUS) A DOCTORAL THESIS SUBMITTED FOR THE DEGREE OF DOCTOR...

Ngày tải lên: 10/09/2015, 15:47