[PDF] Top 20 Equal rate resource allocation for multiuser OFDM

... In the inner loop of Algorithm 3, each subcarrier is suc- cessively adjusted among users to improve the objective of problem (2). This procedure repeats I times iteratively by the outer loop. Hence, we name our method ... See full document

... The SNR values are calculated directly from the preambles. Each frame starts with the preambles that are a basis for channel transmission function and SNR-values calculation for subcarriers in the next frame. The ... See full document

... Resource allocation for multiuser OFDM networks has attracted a lot of interest [15], The goal is to jointly allocate subcarriers, rate and power in order to maximize (respectively ... See full document

... based resource and energy allocation algorithm by using carrier activation algorithm ...- OFDM signal are generated and the signals are classified in to RT and NRT ...based resource and energy ... See full document

... n-th OFDM symbol is constituted by the superpo- sition of the independently faded signals associated with the L users sharing the same space-frequency resource ... See full document

... The last two figures, Figs. 10 and 11, show the perfor- mance of the system when the size of the harvesting group increases in relative terms when compared to the size of the information group, i.e., when M U increases. ... See full document

... In this paper, we propose a BER minimizing power- loading technique that employs only the CSI in terms of “strong-weak” subcarriers and does not require complete in- formation about the power gain values. The technique ... See full document

... and rate adaptive (RA) ...The rate adaptive objective is to maximize each user error-free capacity with a total transmits power ...adaptive resource apportionment was tackled. In [6], the rate ... See full document

... transmission rate), is depicted in Figure ...transmission rate increases (Figure ...transmission rate is on average lower than the data arrival rate), it proves useless, and the user satisfac- ... See full document

... Radio resource allocation in OFDMA system has received considerable attention in recent ...data rate to maximize system spectral efficiency under the constraints of satisfying multiuser ... See full document

... SUs’ rate requirements are small, the CR network benefits from multiuser diversity for more SUs case because a sub-channel is more likely to be allocated to an SU who has good channel gain over ...SUs’ ... See full document

... The resource allocation algorithm then assigns a mutually disjoint subset of subcarriers to each user and selects different numbers of bits from different users' data stream to form an OFDM ... See full document

... typical resource allocation schemes is analyzed, which are applied to indoor MIMO-OFDM visible-light communication system, the maximum capacity allocation algorithm, the rate ... See full document

... distinctive rate limitations and p max m = 30 dB m, ...distinctive rate requirements since the proposed vitality proficient resource allocation plan has the capacity abuse multiuser ... See full document

... each resource block (RB) experiences the same channel condition and its channel frequency response is represented by the middle, that is, the 6th, subcar- rier of the ... See full document

... n-th OFDM symbol is constituted by the superposition of the independently faded signals associated with the L users sharing the same space- frequency resource ... See full document

... been taken place in last few years and in the field of multiple user MIMO system. Various communication techniques along with encryption methods was created in order to utilize the spatial dimensions in order to obtain ... See full document

... In a single cell, when the average SNR of some users requires very high data rates, their rate requirements can not be met. If the user‟s average SNR received from its neighboring cell is much higher due to ... See full document

... of OFDM is to split a high data rate stream into a number of low data rate stream so that the lower data rate can be transmitted simultaneously over a number of ...In OFDM, the amount ... See full document

... wireless OFDM downlink system consisting of one cognitive base station (CBS) and k ...The OFDM system bandwidth is assumed to be equally divided into n (n ≥ k) ... See full document