Transactional model of a company based on the Hub-Spoke and LDPC/MIMO models
ACOS'07 Proceedings of the 6th Conference on WSEAS International Conference on Applied Computer Science - Volume 6
The optimization of an export/import company by use of a MIMO/4G channel
MATH'06 Proceedings of the 10th WSEAS International Conference on APPLIED MATHEMATICS
An adaptive coded modulation with multi-levels QoS analysis in multimedia environment
WSEAS TRANSACTIONS on COMMUNICATIONS
Policy-based multiple access for decentralized low power systems
IEEE Transactions on Wireless Communications
Energy-efficient scheduling of delay constrained traffic over fading channels
IEEE Transactions on Wireless Communications
Asymptotically optimal policies for hard-deadline scheduling over fading channels
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
The improvement of a export/import company by use of 4G wireless networks
ICCOMP'06 Proceedings of the 10th WSEAS international conference on Computers
| Hi-index | 754.84 |
We consider a nonergodic multiple-access Gaussian block-fading channel where a fixed number of independent and identically distributed (i.i.d.) fading coefficients affect each codeword. Variable-rate coding with input power constraint enforced on a per-codeword basis is examined. A centralized power and rate allocation policy is determined as a function of the previous and present fading coefficients. The power control policy that optimizes the expected rates is obtained through dynamic programming and the average capacity region and the average capacity region per unit energy are characterized. Moreover, we study the slope of spectral efficiency curve versus Eb/N0 (dB), and we quantify the penalty incurred by time-division multiple access (TDMA) over superposition coding in the low-power regime.