OFDMA system
A Precoded OFDMA System with User Cooperation
... two-user OFDMA system that combines linear interblock precoding and user ...noncooperative OFDMA system that uses the same transmission energy per block pair and the same interblock precoding ...
12
DFT-Based OFDMA System with Phase Modulation for Broadband Communication
... proposed system in term of PAPR when compared to the conventional ...DFT- OFDMA-PM and the traditional OFDMA system, with localized and interleaved mapping ...proposed system provides ...
9
Design and Implementation of FFT Processor for OFDMA System Using FPGA
... Abstract: Orthogonal Frequency Division Multiplexing(OFDM),is a frequency-division multiplexing(FDM) scheme utilized as a digital multi-carrier modulation(MCM) method.A large number of closely-spaced orthogonal ...
7
Throughput Analysis of Band AMC Scheme in Broadband Wireless OFDMA System
... Two di ff erent types of subchannel allocation modes are defined in the IEEE 802.16e OFDMA specifications: diversity and band-AMC modes. As shown in Figure 1, the di ff erence between these two modes depends on how ...
8
Adaptive Resource Allocation with Strict Delay Constraints in OFDMA System
... We consider the adaptive resource allocation problem in downlink Orthogonal Frequency Division Multiple Access (OFDMA) system with strict packet delay constraints in the range of 1 < D < ∞ . In this ...
14
Chunk based User Selection and Resource Allocation in Multi Cell OFDMA System Nagireddypalli Asiabhanu & Y Raghuram Prasad
... where Δf is the frequency separation between two adjacent subcarriers, and fc is the channel coherence bandwidth.In the downlink OFDMA system, in order to achieve large throughput, the adaptive modulation ...
5
A Resource Allocation Algorithm of Physical Layer Security for OFDMA System under Non ideal Condition
... In this paper, a resource allocation scheme based on physical layer security under non-ideal condition for OFDMA sys- tem is introduced. Firstly, the program uses the information security constructing an ...
7
Performance evaluation of OFDMA system of LTE in terms of PAPR
... for OFDMA system, is ...of OFDMA system for different modulation schemes (QPSK,16QAM and 64QAM) used in LTE for different channel bandwidths supported by LTE ...
5
Performance of an Uplink OFDMA System Using Subcarrier Allocation
... Assuming a SIC detector, we state a mutual interference power among the subcarriers allocated to the vehicular users, and formulate , an integer programming to find an optimum subcarrier allocation that minimizes the ...
7
PAPR Reduction for 3FPP LTE OFDMA System
... At present time the demand on high data rate is increasing in order to support broadband services. Long term evolution (LTE) is a project of third generation partnership project (3GPP) and is an evolution to existing 3G ...
5
Scalable Cyclic Prefix Based Adaptive Roll off Factor for Phase Offset Reduction in LTE
... (9) Thus (9) gives an optimal solution to obtain a high data throughput at a significant SE, with control over CP and roll off factor. In light of the above discussion, it is indeed a necessity to discuss about the ...
9
Cross Layer Multiserve Scheduling for Mobile WiMAX
... in OFDMA system and proposed efficient packet scheduling schemes to assign resources for real-time and non-real-time packets together in OFDMA system; these schemes are needed to be modified ...
5
Resource Allocation for Bidirectional Long Term Evolution System
... cell OFDMA system is proposed by (Xu, Yu and Jiang, ...cooperative OFDMA systems for single direction are investigated by (Di et al, 2016, Li and Murch, 2013, Chang and Restaniemi, 2013, Zhang et al, ...
10
Analytical Frame Work for MIMO-OFDMA With Non-Stationary Interference
... MIMO-OFDMA system over space frequency selective channels and non-stationary ...MIMO OFDMA system can be analyzed by deriving the pair wise error probability by using union bound approach ...
10
Channel Asymmetry in Cellular OFDMA TDD Networks
... CDMA system in [22] with the same cell radius, number of cells, number of users as in the present ...total system data ...an OFDMA system, the fair OTA-SRR approach is more efficient than the ...
14
An Efficient Dynamic Channel Allocation Algorithm for Wi MAX Networks
... The dynamic channel allocation algorithm proposed in this paper allocates the radio resources optimally within multiuser OFDMA system. Power and subcarriers have considered as the radio resources where ...
6
Advanced Receiver Design for Quadrature OFDMA Systems
... one system starts to outperform the other depends on the channel condition and modulation scheme ...Q- OFDMA system becomes the conventional OFDMA system, which outperforms the ...
9
TRANSMISSION OF WATERMARKED MEDICAL IMAGE OVER DCT BASED OFDMA WIRELESS SYSTEM
... the system performance which is caused by multi-path fading. OFDMA system has the ability to overcome the ISI by the frequency domain ...user, OFDMA assigns different groups of subcarriers (in ...
9
Performance Analysis Of Wimax/Lte System For Single And Multi-User In Ofdma Downlink Access
... [4]. OFDMA separately supports multiple users by assigning them specific subchannels for recesses of ...OFDM system and does not support Point-to-multipoint data transmission in static and moveable ...in ...
7
WIMAX OFDMA using high efficiency video Coding in VLSI accomplishment
... WiMAX OFDMA using the HEVC with turbo decoder that the video transmission is achieved by low data ...in OFDMA system for transmitting video with low data rate transmission in wireless LANs due to ...
5