Adaptive Modulation
JOINT ADAPTIVE MODULATION FOR IMAGE TRANSMISSION
... Joint Adaptive Modulation scheme for image transmission over AWGN ...the modulation level that meets a better symbol error rate than the 64 QAM ...fixed- modulation based systems while ...
7
Adaptive modulation schemes for optical wireless communication systems
... The adaptive modulation scheme was proposed to improve data throughput when the optical wireless channel was distorted due to ISI and intense background ambient light noise ...complexity. Adaptive ...
247
Brief Survey on Rate Adaption Techniques with Adaptive Modulation
... ABSTRACT: Modulation is nothing but a transmitting process of data from information source to the information ...destination. Adaptive Modulation and Coding (AMC) is a choice of modulation, ...
6
Joint Adaptive Modulation and Multiuser Downlink Scheduling-A Survey
... Adaptive modulation and diversity combining schemes can be jointly used for finding low hardware complexity, bandwidth-efficient, and processing-power efficient transmission schemes for a downlink ...The ...
7
Adaptive modulation with multi level securityusing sparse matrices
... are modulation, Encryption/ decryption with and without keys, and many other cryptographic ...and modulation changed the mode of data transfer through ...1.1 Adaptive modulation ...
6
Mathematical Model for Modulation Detection in Adaptive Modulation System S. Selvakumar 1, Dr.J.Vaideeswaran2
... in Adaptive Modulation ...best modulation. Modulation selection based on Amplitude, Phase, Frequency and ...These modulation selections improve the Quality of Services and avoid the ...
6
Adaptive Power Saving Receiver for DVB H Exploiting Adaptive Modulation and Coding
... novel Adaptive Modulation and Coding (AMC) framework is proposed for DVB-H systems to ad- dress the challenging problem of power ...The adaptive receiver selects the appropriate modulation ...
15
Decrease Interference Using Adaptive Modulation and Coding
... the modulation, coding and other signal and protocol parameters to the conditions on the radio ...link. Adaptive modulation systems invariably require some channel state information at the ...
6
Adaptive Modulation Techniques for Duplex OFDM Transmission
... with adaptive modulation has been reported by Matsuoka et ...variable—throughput adaptive schemes can be devised, which operate efficiently in conjunction with powerful error correction codecs, such ...
14
Optimum Mode Switching Assisted Adaptive Modulation
... – Adaptive modulation techniques combat fad- ing by employing a suitable modulation mode depending on the instantaneous channel conditions for improving the Bit Error Rate (BER) performance or the ...
5
Wireless Communication through Adaptive Modulation by MHPM Using OFDMA
... MHPM modulation techniques ...best adaptive modulation system taken once by m-ary CPM,m-ary QAM and m-ary PSK for MC-CDMA ...m-ary modulation techniques, m-ary MHPM was thought-about because ...
6
Experimental Evaluation of Adaptive Modulation and Coding in MIMO WiMAX with Limited Feedback
... We evaluate the throughput performance of an OFDM WiMAX (IEEE 802.16-2004, Section 8.3) transmission system with adaptive modulation and coding (AMC) by outdoor measurements. The standard compliant AMC ...
12
Capacity Enhancement of WiMAX System Using Adaptive Modulation and Code Rate
... The fundamental limitations of wireless communication system are limited channel bandwidth, time varying channel fading make it a difficult problem to provide a high QoS. The traditional wireless communication systems ...
6
Performance of Cognitive Radio PHY under Adaptive Modulation Coding
... The adaptive modulation schemes are used to increase the speed and capacity of the ...The adaptive modulation schemes are of two categories-higher modulation schemes (M-ary QAM) and ...
9
Adaptive modulation for enhanced OFDM systems using fuzzy logic
... modified adaptive modulation is proposed to avoid wireless channel fluctuations that affect particular kind of ...including modulation order, bit error rate, signal to noise ratio and code ...improve ...
8
ADAPTIVE MODULATION TECHNIQUES FOR CAPACITY IMPROVEMENT OF BER IN WCDMA
... of adaptive modulation for the achievement of this ...using adaptive modulation in terms of spectral efficiency and probability of bit error in real radio networks ...fixed modulation ...
6
Performance Evaluation of Adaptive Modulation Based MC CDMA System
... use adaptive transmission technique using past channel observations of 1 carrier to predict future channel state information and this technique performs adaptive modulation without feedback path for ...
5
Comparative Study of Adaptive Beam Steering and Adaptive Modulation Assisted Dynamic Channel Allocation Algorithms
... When simulating the network employing adaptive antennas in conjunction with adaptive modulation and power control, a multipath propagation environment was employed. This con- sisted of the ...
18
Adaptive Modulation and Coding for Multi Hop Network
... “Adaptive Modulation and Coding” (AMC) technique and based on the feedback information and in accordance with targeted Quality of Service, they provide the values of transmission parameter to be employed in ...
5
Performance Analysis of Adaptive Modulation in OFDM Systems
... the modulation level or order M of the particular modulation ...As modulation order M increases, system throughput performance improves and BER performance ...the modulation mode for the ...
8