用计算机仿真的方法在数字用户环路上实现了该算法,并测定其数字用户环路上所能获得的最大传码率,分析最大传码率与发送总功率的关系,给出比特分配结果。
On the digital subscriber loop we realized the algorithm, got the max receiving bit, analysed the relation between the max receiving bit and transmitted power, and got the result of bit allocation.
针对MQAM调制,采用变步长的贪婪算法得到优化的子信道比特加载及功率分配方案。
For MQAM modulation, the optimized bit loading and power allocation were derived from a various-step greedy algorithm.
基于迭代的比特和功率分配机制,提出了一种低复杂度的比特和功率分配算法。
Based on the iterative bit-filling procedure, a computationally efficient bit and power allocation algorithm is presented.
在研究MC - CDMA系统和自适应比特分配技术的基础上,提出了一种适合MC - CD MA系统的自适应比特和功率分配算法。
An adaptive bit and power allocation algorithm for MC-CDMA system is proposed in this paper based on the study of MC-CDMA system and adaptive allocation technology.
算法使用分组代替迭代计算,摒弃复杂的子载波交换操作,以极低的复杂度实现了等功率下的自适应子载波分配和比特加载。
The algorithm, which involves adaptive sub-carrier allocation and bit loading with equally power allocation, adopts a grouping technique rather than the sub-carrier swapping.
该方、去通过固定排序后的子信道的功率和比特分配方案大大降低了复杂度。
A low-complexity bit and power allocation algorithm is proposed based on this structure.
该算法借鉴OFDM系统中自适应分配算法的思想,为各个扩频支路确定合适的比特数目和发射功率。
We distribute proper bit and power for each spread branch by using adaptive allocation ideas in OFDM for reference.
接着通过比特取整过程以及部分子载波功率和比特调整过程,实现系统资源的合理分配。
Finally, with the bit integer conversion process and the partial sub-channel's power and bit adjusting process, the system resource allocation is finished.
通过对信道状态信息进行判断,利用贪婪算法将用户子载波分配的比特取整,以实现系统功率最小化。
Then, the bit was rounded by the greedy algorithm with the channel state information judgment, to obtain the minimized transmission power of the system.
结果表明,该算法在误码率性能上明显优于等比特分配算法,也减少了系统的传输功率。
The result shows that this algorithm is better than that of constant bit rate distribution on the performance of error rate in the addition of reducing the transmission power of system.
OFDM系统的自适应比特加载和功率分配程序,运行OFDM。
M-OFDM system of adaptive bit load and power distribution, the running OFDM.
仿真结果表明,该算法是一种最优的比特和功率分配算法。与传统的等比特分配方案相比,该算法能够显著提高系统的性能。
Simulation results show that the proposed algorithm is an optimal algorithm and it can clearly improve system performance compared with the traditional equal bit allocation algorithm.
基于子载波边际效用,提出了一种针对实时业务的资源优化分配算法,在满足其传输速率和误比特率的前提下,有效地降低了系统所需要的发射功率。
After that, a resource optimization method for real-time traffics is proposed, which minimizes the required transmit power while guaranteeing the QoS requirement of real-time traffics.
基于子载波边际效用,提出了一种针对实时业务的资源优化分配算法,在满足其传输速率和误比特率的前提下,有效地降低了系统所需要的发射功率。
After that, a resource optimization method for real-time traffics is proposed, which minimizes the required transmit power while guaranteeing the QoS requirement of real-time traffics.
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