Resource Allocation with Dynamic Carrier Assignment in Wireless Networks
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Vitomir Seba
,
Borivoj Modlic
Abstract
Wireless networks experience deficient transmission bandwidth and varying conditions in radio-link. Various technologies are combined to accomplish high data rate and quality of communication. This article describes the features of the proposed system based on 802.16 standard and orthogonal frequency division multiple access (OFDMA) with synergy of other advanced technologies. The system enables dynamic subcarriers allocation to users. Signal-to-noise ratio (SNR) per subcarriers is separately calculated for each user from the preambles. The resources are then allotted to users based on resource allocation algorithm (RAA) and required Quality of Service (QoS), defined for each type of data traffic. The proposed method performs adaptive modulation and coding with frequency hopping (FH). The results are compared to the existing RAA and subcarrier permutations. They show a more equitable allocation of available bandwidth among the users and greater system transmission capacity at lower bit error rate (BER).
©2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
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- Design of Cavity-Backed Wideband Circularly Polarized Multi-Feed Slot Antenna and its Array
- Dual Polarized Notch-etched Circular Patch Antenna Loaded with Metamaterial Structure
- Novel Dual-band Slot Antenna Design for Bluetooth and UWB Applications
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- Simulation Model for DVB-SH Systems Based on OFDM for Analyzing Quasi-error-free Communication over Different Channel Models
- Resource Allocation with Dynamic Carrier Assignment in Wireless Networks
- Performance Analysis of Two-Way OFDM Relay Systems with Ordered Subcarrier Pairing
- Stackelberg Game Based Power Allocation for Physical Layer Security of Device-to-device Communication Underlaying Cellular Networks
Articles in the same Issue
- Frontmatter
- Design of Cavity-Backed Wideband Circularly Polarized Multi-Feed Slot Antenna and its Array
- Dual Polarized Notch-etched Circular Patch Antenna Loaded with Metamaterial Structure
- Novel Dual-band Slot Antenna Design for Bluetooth and UWB Applications
- A Triple-band Bandpass Filter using Tri-section Step-impedance and Capacitively Loaded Step-impedance Resonators for GSM, WiMAX, and WLAN systems
- A Differential CMOS Common-Gate LNA Linearized by Cross-Coupled Post Distortion Technique
- A Wideband Noise-canceling CMOS LNA Using Cross-coupled Feedback and Bulk Effect
- Simulation Model for DVB-SH Systems Based on OFDM for Analyzing Quasi-error-free Communication over Different Channel Models
- Resource Allocation with Dynamic Carrier Assignment in Wireless Networks
- Performance Analysis of Two-Way OFDM Relay Systems with Ordered Subcarrier Pairing
- Stackelberg Game Based Power Allocation for Physical Layer Security of Device-to-device Communication Underlaying Cellular Networks
