Proceedings Article10.1109/WICOM.2008.155
Adaptive Bit Power Allocation Algorithm for Multiuser MIMO-OFDM Systems
Si Jiajia,Zhu Qi +1 more
- 18 Nov 2008
- pp 1-4
5
TL;DR: Simulation results show that the computational complexity of the proposed RA algorithm decreases a lot than the traditional algorithm while the capability of system is increased.
read more
Abstract: In this paper, an improvement of the RA (Rate Adaptive) algorithm with alterable allocation step is proposed. Considering of the requirement on system bit error rate and the restriction on allocated bits in each channel, we compare the performance between the improved algorithm and the traditional RA algorithm. Simulation results show that the computational complexity of the proposed RA algorithm decreases a lot than the traditional algorithm while the capability of system is increased. So the proposed improved RA algorithm is a promising optimal method for implementation.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
•Dissertation
Transmit power and bit allocations for OFDM systems in a fading channel
장지호
- 01 Jan 2003
56
•Journal Article
Adaptive Bit and Power Allocation Algorithm for OFDM System
TL;DR: The proposed algorithm of power and bit allocation for OFDM system based on Genetic algorithm (GA) can resolve three problems as bit and power allocation to minimize the total project power in the condition of certain transmission rate and BER by adjust function.
2
Spectrally-temporally adapted Spectrally Modulated Spectrally Encoded (SMSE) waveform design for coexistent CR-based SDR applications
Eric C. Like
- 01 Mar 2010
TL;DR: Results show that by exploiting statistical knowledge of primary user spectral and temporal behavior, the inherent flexibility of the SMSE framework is effectively leveraged such that SMSE throughput (Bits/Sec) is maximized while limiting mutual coexistent interference to manageable levels.
Patent
Ensemble modem structure for imperfect transmission media
迪克·胡斯·哈托格斯
- 19 May 1986
TL;DR: It’s time to get used to the idea that things are going to change.
An improved adaptive bit power allocation algorithm for OFDM system based on MA criterion
Jianguo YUAN,Fang ZHANG,Xiruo ZHANG,Zhengquan WANG,Jin ZENG,Demeng ZHENG +5 more
TL;DR: This study proposes an improved adaptive bit power allocation algorithm for OFDM systems based on the margin adaptive criterion, reducing computational complexity by introducing a power utilization function and a classification sorting table.
References
Capacity of Multi‐antenna Gaussian Channels
Emre Telatar
- 01 Nov 1999
TL;DR: In this paper, the authors investigate the use of multiple transmitting and/or receiving antennas for single user communications over the additive Gaussian channel with and without fading, and derive formulas for the capacities and error exponents of such channels, and describe computational procedures to evaluate such formulas.
On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
G. J. Foschini,M. J. Gans +1 more
TL;DR: In this article, the authors examined the performance of using multi-element array (MEA) technology to improve the bit-rate of digital wireless communications and showed that with high probability extraordinary capacity is available.
Capacity of Multi-Antenna Gaussian Channels
I. E. Telatar
- 01 Jan 1995
TL;DR: The use of multiple transmitting and/or receiving antennas for single user communications over the additive Gaussian channel with and without fading is investigated, and formulas for the capacities and error exponents are derived.
8.4K
Patent
Ensemble modem structure for imperfect transmission media
Dirk Hughes-Hartogs
- 05 May 1986
TL;DR: In this paper, a high speed modem that transmits and receives digital data on an ensemble of carrier frequencies spanning the usable band of a dial-up telephone line is described, which includes a system for variably allocating data and power among the carriers to compensate for equivalent noise and to maximize the data rate.
807
Multiuser subcarrier allocation for QoS provision in the OFDMA systems
S. Pietrzyk,Gerard J. M. Janssen +1 more
- 10 Dec 2002
TL;DR: This paper proposes an extension of Wong's (1999) algorithm, which distributes subcarriers and transmit power among multiple users according to their QoS traffic requirements, and fits the considered resource allocation algorithm into a general contract-based QoS/CoS (cost of service) framework, which allows for efficient management of resources on the system level.
127