Modern wireless communications are based on the exploitation of channel behavior and/or user requirements by adapting one or more transmission parameters. Amongst several systems the OFDMA offers a lot of capabilities to the system designer allowing adapting in several ways the communications. This chapter deals with the introduction of the basic principle of an adaptive OFDMA system by focusing on those most important parameters that can be adjusted in order to have better performance. Finally, some techniques are presented also by showing some numerical results
Whenever a communication system operates in a time-frequency dispersive radio channel, the link adap...
When Orthogonal Frequency Division Multiplexing (OFDM) is used to transmit information over a freque...
In orthogonal frequency division multiplexing (OFDM) systems, there are several degrees of freedom i...
Modern wireless communications are based on the exploitation of channel behavior and/or user require...
OFDM has been recognized as a powerful multi-carrier modulation technique that provides efficient sp...
A review of adaptive modulation with other related issues as part of link adaptation in an OFDM syst...
In this paper we review contributions regarding dynamic, i.e., channel-state adaptive schemes for OF...
Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme is adopted by more and more wire...
Supported by the expert-level advice of pioneering researchers, Orthogonal Frequency Division Multip...
The need for high capacity downlink in wireless mobile network in future is very much essential and ...
"OFDM systems have experienced increased attention in recent years and have found applications in a ...
In wireless communication systems, multiples copies of the transmitted signal arrive at the receiver...
The flexible adaption of the transmission scheme to the current channel state becomes more and more ...
With the growing demand for mobile content, the roles of mobile handsets have started shifting from ...
The demand for multimedia wireless communications is growing today at an explosive pace. One common ...
Whenever a communication system operates in a time-frequency dispersive radio channel, the link adap...
When Orthogonal Frequency Division Multiplexing (OFDM) is used to transmit information over a freque...
In orthogonal frequency division multiplexing (OFDM) systems, there are several degrees of freedom i...
Modern wireless communications are based on the exploitation of channel behavior and/or user require...
OFDM has been recognized as a powerful multi-carrier modulation technique that provides efficient sp...
A review of adaptive modulation with other related issues as part of link adaptation in an OFDM syst...
In this paper we review contributions regarding dynamic, i.e., channel-state adaptive schemes for OF...
Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme is adopted by more and more wire...
Supported by the expert-level advice of pioneering researchers, Orthogonal Frequency Division Multip...
The need for high capacity downlink in wireless mobile network in future is very much essential and ...
"OFDM systems have experienced increased attention in recent years and have found applications in a ...
In wireless communication systems, multiples copies of the transmitted signal arrive at the receiver...
The flexible adaption of the transmission scheme to the current channel state becomes more and more ...
With the growing demand for mobile content, the roles of mobile handsets have started shifting from ...
The demand for multimedia wireless communications is growing today at an explosive pace. One common ...
Whenever a communication system operates in a time-frequency dispersive radio channel, the link adap...
When Orthogonal Frequency Division Multiplexing (OFDM) is used to transmit information over a freque...
In orthogonal frequency division multiplexing (OFDM) systems, there are several degrees of freedom i...