Báo cáo hóa học: " Research Article Resource Allocation with Adaptive Spread Spectrum OFDM Using 2D Spreading for Power Line Communications" doc

... Processing Volume 2007, Article ID 20542, 13 pages doi:10.1155/2007/20542 Research Article Resource Allocation with Adaptive Spread Spectrum OFDM Using 2D Spreading for Power Line Communications Jean-Yves ... principles to an spread spectrum OFDM (SS -OFDM) waveform which i s a multicarrier system using 2D spreading in the time and frequency domains...

Ngày tải lên: 22/06/2014, 19:20

... resource allocation and reallocation algorithms for overlapping MBS Zones. In initialization, the Anchor ASN- GW uses the radio resource allocation algorithm to allocate radio resource unit for ... graph. Therefore, the resource allocation for these topologies is identical. In other words, the resource allocation in overlap- ping MBS Zones is to deal with the colorin...

Ngày tải lên: 21/06/2014, 05:20

... Networking Volume 2010, Article ID 189157, 8 pages doi:10.1155/2010/189157 Research Article Resource Allocation in MU -OFDM Cognitive Radio Systems with Partial Channel State Information Dong Huang, 1 Zhiqi ... [7– 10]: (1) determine the allocation of subcarriers to users and (2) determine the allocation of bits and transmit powers to subcarriers. Resource allocation algo...

Ngày tải lên: 21/06/2014, 11:20

... 3. Specifically, for (3, 2)-MBRC, we plot the capacity lower bound (LB) obtained by optimal resource allocation as well as the capacity upper bound (UB) with the same resource allocation parameters. For comparison ... and Networking Volume 2010, Article ID 792410, 13 pages doi:10.1155/2010/792410 Research Article Resource Allocation for the Multiband Relay Channel: A...

Ngày tải lên: 21/06/2014, 18:20

... μ ∈ (0, 1] into 10 uniform length regions, the quantized values of which are tested for the maximum mutual information with appropriate power allocation as in Section 3. For the beamforming, the angle ... method with different power constraints depending on the time slot divi- sion and CSI. The best time slot division with the maximum mutual information is searched along with...

Ngày tải lên: 22/06/2014, 06:20

... form T  x   ⎧ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎩ { 1 } for x  0  0,  1/2  x  for x ∈  0, 1/2  { 0, 1 } for x  3/4 { 0, 3/4 } for x  1. 5.5 20 Fixed Point Theory and Applications Indeed, we have that, for each q  2, T q  x   ⎧ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎩ { 1 } if ... convergence theorems for dissipative set-valued dynamic systems with generalized pseudodistances in cone unif...

Ngày tải lên: 21/06/2014, 11:20

... therefore, it requires high CPU and memory capabilities to p erform exponential operations. Unfortunately, mobile nodes with limited resources have insufficient power to handle the overhead. Therefore, ... size 160-bit in the ECC performs comparable security levels to 1024-bit RSA. The ECC has efficient operation and is indeed practicable for wireless networks with limited resources. An e...

Ngày tải lên: 21/06/2014, 11:20

... implementation of adaptive resource allocation in OFDMA is a disjoint sub- carrier, power, and bit allocation. Herein, we further sim- plify the optimization problem and restrict adaptive resource allocation ... Communications and Networking Volume 2008, Article ID 160307, 10 pages doi:10.1155/2008/160307 Research Article Practical Approaches to Adaptive Resource Allo...

Ngày tải lên: 22/06/2014, 19:20

... services Stage I + Investigation on places without infrastruc- ture support Basic infrastructure BSON, BSON with RN, MANET with RN BSON, BSON with RN, MANET with RN and MANET Routing issues BS switch ... with common or different sets of transmission resources for its links and homogeneous relay node that uses the same radio access technology and mode in a common set of transmission...

Ngày tải lên: 21/06/2014, 22:20

... individual optimality in dynamic spectrum management. He proved that a competitive equilibrium always exists for the communication spectrum market with Shannon utility for spectrum users, and under ... requirements always exists for the communication spectrum market with Shannon utility if the total power demand is less than or equal to the available total power supply....

Ngày tải lên: 21/06/2014, 22:20