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## Very High Data Rate MB-OFDM UWB Systems with Transmit Diversity Techniques (2012)

### Citations

2122 | A Simple Transmit Diversity Technique for Wireless Communication
- Alamouti
- 1998
(Show Context)
Citation Context ...ansmission techniquessfor high data rate applications with low cost and low powersconsumption [1], [2]. On the other hand, Multiple InputsMultiple Output (MIMO) techniques, e.g. space time codess[3], =-=[4]-=-, could significantly improve system performance.sTherefore, the combination of these technologies may be aspotential solution for satisfying the demand of future personalswireless applications.sThe i... |

1778 | Space-time codes for high data rate wireless communication: performance criterion and code construction
- Tarokh, Seshadri, et al.
- 1998
(Show Context)
Citation Context ...ng transmission techniquessfor high data rate applications with low cost and low powersconsumption [1], [2]. On the other hand, Multiple InputsMultiple Output (MIMO) techniques, e.g. space time codess=-=[3]-=-, [4], could significantly improve system performance.sTherefore, the combination of these technologies may be aspotential solution for satisfying the demand of future personalswireless applications.s... |

205 |
Ultra-WideBand Communications: An Idea Whose Time Has Come,”
- Yang, Giannakis
- 2004
(Show Context)
Citation Context ...sI.sINTRODUCTIONsUltra-wideband (UWB) wireless communications havesemerged as one of the most promising transmission techniquessfor high data rate applications with low cost and low powersconsumption =-=[1]-=-, [2]. On the other hand, Multiple InputsMultiple Output (MIMO) techniques, e.g. space time codess[3], [4], could significantly improve system performance.sTherefore, the combination of these technolo... |

183 | Efficient encoding of low-density parity-check codes,” Information Theory
- Richardson, Urbanke
- 2001
(Show Context)
Citation Context ...ional one. The simulation parameters are chosen basedson the WiMedia’s specifications for the data rate of 1024sMbps, and are listed in Table II. In addition, the LDPCsencoding algorithm developed in =-=[8]-=- which could achieveslinear running time is adopted in our simulation. We measuresthe system performance in terms of packet error rate (PER)sover the IEEE 802.15.3a channel models defined in [12]. The... |

121 | Design of a multiband OFDM system for realistic UWB channel environments,”
- Batra, Balakrishnan, et al.
- 2004
(Show Context)
Citation Context ...NTRODUCTIONsUltra-wideband (UWB) wireless communications havesemerged as one of the most promising transmission techniquessfor high data rate applications with low cost and low powersconsumption [1], =-=[2]-=-. On the other hand, Multiple InputsMultiple Output (MIMO) techniques, e.g. space time codess[3], [4], could significantly improve system performance.sTherefore, the combination of these technologies ... |

48 |
et al., “Channel modeling sub-committee report final
- Foerster
- 2005
(Show Context)
Citation Context ...ed in [8] which could achieveslinear running time is adopted in our simulation. We measuresthe system performance in terms of packet error rate (PER)sover the IEEE 802.15.3a channel models defined in =-=[12]-=-. Theresare four channel models, namely CM1, CM2, CM3, and CM4,scorresponding to different scenarios. The CM1 channel issbased on a measurement of a Line of Sight (LOS) scenarioswhere the distance bet... |

31 |
Simplified soft-output demapper for binary interleaved COFDM with application to HIPERLAN/2”.
- Tosato, Bisaglia
- 2002
(Show Context)
Citation Context ...ir of symbols x1(k)sand x1(k+50) of x1 are given in (12), where A=[A(0),...,sA(k),..., A(K-1)]. It should be noted that the LLR values, suchsas in (8) and (12), could be further normalized as done in =-=[11]-=-.sFinally, the LDPC decoder takes the soft-values for softdecoding in order to retrieve the transmitted information.sIV. SIMULATION RESULTSsIn this section, simulation results are provided to supports... |

25 | Liu “MultibandOFDM MIMO coding framework for UWB communication systems
- Siriwongpairat, Su, et al.
- 2006
(Show Context)
Citation Context ...ications.sThe investigation of space time frequency (STF) codedsmultiband-orthogonal frequency division multiplexing ultrawideband (MB-OFDM UWB) systems have been mentionedsin the literature, such as =-=[5]-=- and [6]. In [5], the authorssproposed a coding framework for MIMO MB-OFDM UWBssystems. They quantified the system performance regardlesssof specific coding schemes in the case of Nakagami-msfrequency... |

12 |
et al., “Multiband OFDM physical layer specification,” WiMedia Alliance, Final Deliverable 1.5
- Batra
- 2009
(Show Context)
Citation Context ...mal distribution.sAlthough the results in terms of performance improvement arespromising, these works only considered the systems with harddemapping.sAs introduced in the WiMedia’s latest Release 1.5 =-=[7]-=-, forsthe case of very high data rate (VHDR) applications, thesModified Dual Carrier Modulation (MDCM) and Low DensitysParity Check (LDPC) codes are deployed, replacing a DCMsmodulation and convolutio... |

8 |
Space-time frequency code implementation in MB-OFDM UWB communications: design criteria and performance
- Tran, Mertins
- 2009
(Show Context)
Citation Context ....sThe investigation of space time frequency (STF) codedsmultiband-orthogonal frequency division multiplexing ultrawideband (MB-OFDM UWB) systems have been mentionedsin the literature, such as [5] and =-=[6]-=-. In [5], the authorssproposed a coding framework for MIMO MB-OFDM UWBssystems. They quantified the system performance regardlesssof specific coding schemes in the case of Nakagami-msfrequency selecti... |

7 |
Probability and Random Processes With application to signal Processing and Communications
- Miller, G
- 2004
(Show Context)
Citation Context ... the symbols are equally likely,sby applying the property of a joint Gaussian probabilitysfunction (pdf) and Bayes’ rule, we have (5), where the jointsGaussian pdfsf{.} could be expressed by (6), (7) =-=[10]-=-. Usingsthe log-map approximation, we finally have (8). Based on thessecond observation in Section II.B, the LLR values for bitss7,6,3,2, ~ ibisare obtained by replacing )}k(x~Re{sands)}k(x~Re{ 50si... |

1 |
Practical algorithms for soft-demapping dual-carrier modulated symbols
- Srivastava
- 2006
(Show Context)
Citation Context ...6#5#4 #3 Band Group #1sBand Group #6s)}k(x~Re{sand )}k(x ~Re{ 50sis exactly the same as thosesneeded to get ,,,,i,b~i 7632 from )}k(x~Im{sands)}.k(x~Im{ 50 These observations are similar to DCM in =-=[9]-=-.sC. Derivation of soft-demapping expressions for MDCMsWe now derive MDCM soft-demapping expressions.sDenote the signal received at the kth subcarrier to be ),(kys)1(),()()()( knkxkhky swhere )(khsi... |