techniques ofdm
RSS techniques ofdmAdaptive OFDM Techniques With One-Bit-Per-Subcarrier Channel-State Feedback
White Paper In the Orthogonal Frequency-Division Multiplexing (OFDM) scheme, some subcarriers may be subject to a deep fading. This paper studies the performance of an OFDM-based communication system whose... [11 Apr 2007]
Diversity Techniques for OFDM Based WLAN Systems in Rice and Rayleigh Channels
White Paper This paper presents different spatial diversity techniques that can be employed in an OFDM based WLAN system to improve the system performance in Rice and Rayleigh channels. HIPERLAN/2 (HL/2) is a... [28 Mar 2005]
On the Exploitation of Multiple Access Points in a Wireless Single-Frequency-Network Using TDD-OFDM-MIMO Techniques
White Paper This paper proposes a new MIMO data transmission scheme, which combines Single-Frequency-Network (SFN) with TDD-OFDM-MIMO applied for wireless LAN networks. However, the efficiency of MIMO techniques... [18 Apr 2007]
Diversity Techniques for OFDM Based WLAN Systems: A Comparison Between Hard, Soft Quantified and Soft No Quantified Decision
White Paper This paper presents different spatial diversity techniques that can be employed in an OFDM based WLAN system to improve the system performance in Rice and Rayleigh channels using hard, soft quantified... [28 Oct 2004]
Transmit/Receive-Antenna Diversity Techniques for OFDM Systems
White Paper This paper investigates different antenna diversity concepts, which can be easily applied to orthogonal frequency division multiplexing (OFDM) systems. The focus is on standard compatibility, i.e.these schemes can be... [31 Oct 2004]
Diversity Techniques for OFDM Based WLAN Systems in Rice and Rayleigh Channels
This paper presents different spatial diversity techniques that can be employed in an OFDM based WLAN system to improve the system performance in Rice and Rayleigh channels. HIPERLAN/2 (HL/2) is a... [28 Mar 2005]
Diversity Techniques for OFDM Based WLAN Systems
White Paper This paper presents different spatial diversity techniques that can be employed in an OFDM based WLAN system to improve the system performance. This paper presents some results obtained by simulation... [14 Apr 2007]
Use of Cognitive Radio Techniques for OFDM Ultrawideband Coexistence With WiMax
White Paper This paper explores the issues in coexistence between Broadband Fixed Wireless Access, also know as WiMax or 802.16e, and Ultrawideband (UWB), specifically the multiband OFDM form of UWB as promoted by the WiMedia trade... [13 Apr 2007]
Adaptive Modulation Techniques for Duplex OFDM Transmission
White Paper The design tradeoffs of turbo-coded burst-by-burst adaptive Orthogonal Frequency Division Multiplex (OFDM) wideband transceivers are analyzed. This paper demonstrates that upon aiming for a higher throughput a higher... [18 Apr 2007]
Performance of Space-Frequency Techniques Over Measured Channels in MIMO-OFDM Systems
White Paper This paper examines the performance of some recently proposed Space-time coding and signal processing techniques when applied to Orthogonal Frequency Division Multiplexing (OFDM) in Multiple Input... [11 Apr 2007]
Modified SMI Techniques for Frequency Selective Channels in OFDM
White Paper In this paper, windowing techniques are applied in order to calculate a beamformer per subcarrier for Orthogonal Frequency Division Multiplexing (OFDM) systems with very limited known training. The... [14 Apr 2007]
Spatial Transmit Diversity Techniques for Broadband OFDM Systems
This paper investigates different spatial transmit diversity concepts for orthogonal frequency division multiplexing (OFDM) systems. The achievable performance gains with the proposed transmit diversity concepts are... [30 Mar 2005]
Subcarrier Exclusion Techniques for Coded OFDM Systems
White Paper In OFDM based wireless LANs an efficient coding scheme, e.g.turbo coding, can improve the performance considerably. However, the bit error rate is mainly affected by strongly attenuated subcarriers. This paper proposes... [21 Oct 2004]
Performance of Joint Detection Techniques for Coded MIMO-OFDM and MIMO-MC-CDM
White Paper As basic modulation technique OFDM is applied. In the case of MIMO-OFDM crosstalk only occurs because of the use of multiple transmit antennas, whereas MIMO-MC-CDM systems are additionally affected by... [02 Nov 2004]
Selective-Mapping Type Peak Power Reduction Techniques for Turbo Coded OFDM
White Paper This paper proposes two modified versions of that scheme. For the first, the variation of the interleaver of the turbo encoder is replaced by the variation of the bit permutation of the turbo codeword. [11 Apr 2007]
