@article{MAKHILLJEAS2016111213968,
    title = {Improving the Performance of Generalized Frequency Division Multiplexing (GFDM) Modulation Scheme by Usingwalsh Hadamard Transform (WHT) Pre-Coded},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {11},
    number = {12},
    pages = {2755-2763},
    year = {2016},
    issn = {1816-949x},
    doi = {jeasci.2016.2755.2763},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2016.2755.2763},
    author = {Muhammad},
    keywords = {Fifth-Generation (5G) networks,Generalized Frequency Division Multiplexing (GFDM),Walsh Hadamard Transform (WHT),Frequency Selector Channel (FSC),Symbol Error Rate (SER),Bit Error Rate (BER)},
    abstract = {The fourth Generation (4G) of cellular systems were designed and implemented to provide high data
rate and reliable network coverage for mobile users. Now, the fithth Generation (5G) of cellular systems with a
more diverse and broader practical purposes have been researching that some of the demands are data rates
beyond the 4G systems up to 1G bit per sec, a slight delay time up to <11 m sec and even lower, very low
consumption power, implementation of potential applications such as the Internet of Things (IoT) and all and
all require a fundamental changes in the physical layer of network such as waveform and modulation scheme
used in the next generation of mobile cellular systems. Modulation scheme of physical layer known as
Generalized Frequency Division Multiplexing (GFDM) is a suitable option to respond to these demands and
requirements for a technology leap to the next generation of cellular systems. In this study, the performance
of GFDM modulation scheme is initially evaluated by Additive White Gaussian Noise (AWGN), Frequency
Selector Channel (FSC) and Time-Varying Channel (TVC) and then, it is shown that GFDM modulation scheme
brings more reliable transmission than FSC channels by using Walsh Hadamard Transform (WHT) pre-coded
on data symbolsthat this functional improvement makes the above-mentioned waveform suitable for potential
applications such as the internet of things in which the number of network interconnections is numerous and
requires very low delay time because a slight delay time can be obtaineddue to transmission with low error
probability. It should be noted that the important parameters of mobile networks such as Symbol Error Rate
(SER) and Bit Error Rate (BER) are used for performance evaluation and comparison of method
presented in this study.}
    }