Transmit Power and Bits Adaptation in QoS Constrained Multiple User Uplink Cognitive OFDM Networks
- Resource Type
- Authors
- Niranjan Roy; Dibyangana Kar; Lutfa Akter
- Source
- 2018 10th International Conference on Electrical and Computer Engineering (ICECE).
- Subject
- Cognitive radio
Channel allocation schemes
business.industry
Orthogonal frequency-division multiplexing
Computer science
Quality of service
Telecommunications link
Bit error rate
Data_CODINGANDINFORMATIONTHEORY
Transmitter power output
business
Computer network
Communication channel
- Language
In this paper transmit power and bits/channel allocation of the opportunistic users are jointly optimized in a multiple user OFDM cognitive radio network for up-link inheriting M-ary QAM scheme. Here, optimization refers to minimization of transmit power and maximization of bits/channel per user. Bit Error Rate threshold and minimum requirement of bits/channel are considered as the quality of service (QoS) of this system. Effects of this allocation strategy on efficiencies from different aspects of the system are also canvassed.