vaishali bahl | PUNJAB TECHNICAL UNIVERSITY, JALANDHAR, PUNJAB, INDIA (original) (raw)
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Papers by vaishali bahl
— In this paper presents an IEEE 802.11n standard of OFDM, we investigate the bit error rate (BER... more — In this paper presents an IEEE 802.11n standard of OFDM, we investigate the bit error rate (BER) Vs Signal to noise ratio (SNR) performance of orthogonal frequency division multiplexing in IEEE 802.11n in using different modulation techniques but in this paper operated on Quadrature phase shift keying (QPSK), Binary phase shift keying (BPSK), Quadrature amplitude modulation (512-QAM) over AWGN channel. The performance of transmission modes is evaluated by calculating the BER versus signal to noise ratio (SNR) the additive white Gaussian noise (AWGN), channel. This objective is met by developing an MATLAB program simulate a basic OFDM IEEE 802.11n system and show results.
Orthogonal frequency division multiplexing (OFDM) is a best technique for next generation wireles... more Orthogonal frequency division multiplexing (OFDM) is a best technique for next generation wireless communication systems. However its susceptibility to the frequency offset caused by frequency difference between local oscillator of transmitter and receiver or due to Doppler shift leads to Inter Carrier Interference. This problem of ICI leads to degradation in performance of the wireless systems as bit error rate increases with increase in value of frequency offset. This paper epitomize self-cancellation techniques to mitigate ICI effect for OFDM based wireless systems.
This paper analyses over view of Software Defined Radio. SDR technologies are important feature f... more This paper analyses over view of Software Defined Radio. SDR technologies are important feature for SDR communication system. Software Defined Radio (SDR) promises to deliver a cost effective and more flexible radio . SDR technologies are important from future mobile communication system. In mobile communication SDR Technology are best because its reconfigurable easy and multimode operation capabilities is high The Software based radio provide a challenges of engineer to add more features to original system hardware and its architecture. The Software based radio is most popular because abilities to realize many application and also efforts to integration of different component. The different technologies used in SDR according to digital Standard and Features. SDR Technologies are best because it is a reconfigurable easy and multimode operation capabilities are high. SDR digital radio standards are a provide challenges the radio design purely digital.
IJPTT
— the consistently rising demand for very high rate data transmission over wireless mediums requi... more — the consistently rising demand for very high rate data transmission over wireless mediums requires ingenious usage of electromagnetic resources considering constraints like power consumption, spectrum efficiency, robustness against multipath propagation and implementation complexity. Orthogonal frequency division multiplexing (OFDM) is a propitious technique for next generation wireless communication systems. Nevertheless it suffers from Inter-Carrier Interference (ICI) due to its susceptibility to the frequency offset caused by frequency difference between local oscillator of transmitter and receiver or due to Doppler shift. This paper epitomize self-cancellation techniques to mitigate ICI effect for OFDM based wireless systems. The performances of ICI self-cancellation schemes have been in terms of the bit error rate (BER). Simulation results exhibit ICI self-cancellation Scheme that outperforms other existing self-cancellation methods and robustness to large frequency offset.
IJRITCC
the conjunction of MIMO systems with OFDM has emerged as a promising technology in recent years. ... more the conjunction of MIMO systems with OFDM has emerged as a promising technology in recent years. The use of multiple transmit and receive antennas forming MIMO-OFDM systems not only provide robustness against multipath fading impairments but also ensures significant increase in the rates over frequency selective channels. Furthermore this technology is now making possible to build high data rate communication systems with affordable receiver complexity. Because of these advancements, MIMO-OFDM has been widely adopted for different wireless standards all over the world and few names to mention are IEEE 802.11n (WLAN), IEEE 802.16e-2005(WiMAX), 3 rd Generation Partnership Project (3GPP) Long Term Evolution (LTE).
— In this paper presents an IEEE 802.11n standard of OFDM, we investigate the bit error rate (BER... more — In this paper presents an IEEE 802.11n standard of OFDM, we investigate the bit error rate (BER) Vs Signal to noise ratio (SNR) performance of orthogonal frequency division multiplexing in IEEE 802.11n in using different modulation techniques but in this paper operated on Quadrature phase shift keying (QPSK), Binary phase shift keying (BPSK), Quadrature amplitude modulation (512-QAM) over AWGN channel. The performance of transmission modes is evaluated by calculating the BER versus signal to noise ratio (SNR) the additive white Gaussian noise (AWGN), channel. This objective is met by developing an MATLAB program simulate a basic OFDM IEEE 802.11n system and show results.
Orthogonal frequency division multiplexing (OFDM) is a best technique for next generation wireles... more Orthogonal frequency division multiplexing (OFDM) is a best technique for next generation wireless communication systems. However its susceptibility to the frequency offset caused by frequency difference between local oscillator of transmitter and receiver or due to Doppler shift leads to Inter Carrier Interference. This problem of ICI leads to degradation in performance of the wireless systems as bit error rate increases with increase in value of frequency offset. This paper epitomize self-cancellation techniques to mitigate ICI effect for OFDM based wireless systems.
This paper analyses over view of Software Defined Radio. SDR technologies are important feature f... more This paper analyses over view of Software Defined Radio. SDR technologies are important feature for SDR communication system. Software Defined Radio (SDR) promises to deliver a cost effective and more flexible radio . SDR technologies are important from future mobile communication system. In mobile communication SDR Technology are best because its reconfigurable easy and multimode operation capabilities is high The Software based radio provide a challenges of engineer to add more features to original system hardware and its architecture. The Software based radio is most popular because abilities to realize many application and also efforts to integration of different component. The different technologies used in SDR according to digital Standard and Features. SDR Technologies are best because it is a reconfigurable easy and multimode operation capabilities are high. SDR digital radio standards are a provide challenges the radio design purely digital.
IJPTT
— the consistently rising demand for very high rate data transmission over wireless mediums requi... more — the consistently rising demand for very high rate data transmission over wireless mediums requires ingenious usage of electromagnetic resources considering constraints like power consumption, spectrum efficiency, robustness against multipath propagation and implementation complexity. Orthogonal frequency division multiplexing (OFDM) is a propitious technique for next generation wireless communication systems. Nevertheless it suffers from Inter-Carrier Interference (ICI) due to its susceptibility to the frequency offset caused by frequency difference between local oscillator of transmitter and receiver or due to Doppler shift. This paper epitomize self-cancellation techniques to mitigate ICI effect for OFDM based wireless systems. The performances of ICI self-cancellation schemes have been in terms of the bit error rate (BER). Simulation results exhibit ICI self-cancellation Scheme that outperforms other existing self-cancellation methods and robustness to large frequency offset.
IJRITCC
the conjunction of MIMO systems with OFDM has emerged as a promising technology in recent years. ... more the conjunction of MIMO systems with OFDM has emerged as a promising technology in recent years. The use of multiple transmit and receive antennas forming MIMO-OFDM systems not only provide robustness against multipath fading impairments but also ensures significant increase in the rates over frequency selective channels. Furthermore this technology is now making possible to build high data rate communication systems with affordable receiver complexity. Because of these advancements, MIMO-OFDM has been widely adopted for different wireless standards all over the world and few names to mention are IEEE 802.11n (WLAN), IEEE 802.16e-2005(WiMAX), 3 rd Generation Partnership Project (3GPP) Long Term Evolution (LTE).