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## Distributed space-time coding in wireless relay networks (2006)

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Citations: | 220 - 15 self |

### Citations

2858 | Capacity of multi-antenna Gaussian channels,” European Trans
- Telatar
- 1999
(Show Context)
Citation Context ...d space-time codes. 1 Introduction It is known that multiple antennas can greatly increase the capacity and reliability of a wireless communication link in a fading environment using space-time codes =-=[1, 2, 3, 4]-=-. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network [5, 6, 7, 8, 9]. I... |

1750 | Space-time codes for high data rate wireless communication: performance criterion and code construction
- Tarokh, Seshadri, et al.
- 1998
(Show Context)
Citation Context ...d space-time codes. 1 Introduction It is known that multiple antennas can greatly increase the capacity and reliability of a wireless communication link in a fading environment using space-time codes =-=[1, 2, 3, 4]-=-. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network [5, 6, 7, 8, 9]. I... |

1403 |
Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas
- Foschini
- 1996
(Show Context)
Citation Context ...d space-time codes. 1 Introduction It is known that multiple antennas can greatly increase the capacity and reliability of a wireless communication link in a fading environment using space-time codes =-=[1, 2, 3, 4]-=-. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network [5, 6, 7, 8, 9]. I... |

634 | User cooperation diversity, Part I: system description - Sendonaris, Erkip, et al. - 2003 |

603 | Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
- Laneman, Wornell
- 2003
(Show Context)
Citation Context ...codes [1, 2, 3, 4]. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network =-=[5, 6, 7, 8, 9]-=-. In [8], the authors exploit spatial diversity using the repetition and space-time algorithms. The mutual information and outage probability of the network are analyzed. However, in their model, the ... |

489 | Capacity of mobile multiple-antenna communication link in Rayleigh flat fading
- Hochwald, Marzetta
- 1999
(Show Context)
Citation Context |

435 | Fading relay channels: Performance limits and spacetime signal design
- Nabar, Bolcskei, et al.
- 2004
(Show Context)
Citation Context ...codes [1, 2, 3, 4]. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network =-=[5, 6, 7, 8, 9]-=-. In [8], the authors exploit spatial diversity using the repetition and space-time algorithms. The mutual information and outage probability of the network are analyzed. However, in their model, the ... |

417 | User cooperation diversity-part I: System description - Sendonaris, Erkip, et al. |

415 | High-rate codes that are linear in space and time
- Hassibi, Hochwald
- 2002
(Show Context)
Citation Context ...mulations. Also, the simulations in [11] show that the use of Khatri-Rao codes lowers the average bit error rate. In this paper, we consider a relay network with fading and apply a LD space-time code =-=[12]-=- among the relays. The problem we are interested in is: “Can we increase the reliability of a wireless network by using space-time codes among the relays?” More specifically, the focus of this paper i... |

303 | Unitary space-time modulation for multiple-antenna communication in Rayleigh flat-fading
- Hochwald, Marzetta
- 2000
(Show Context)
Citation Context ...brief, we mean the negative of the exponent of the SNR or transmit power in the PEP formula at high SNR regime. This definition is consistent with the diversity definition in multiple-antenna systems =-=[4, 13]-=-. It determines how fast the PEP decreases with the SNR or transmit power. The same as before, coding gain is the improvement in the PEP obtained by the code design. The wireless relay network model w... |

255 | User cooperation diversity, Part II: implementation aspects and performance analysis - Sendonaris, Erkip, et al. - 2003 |

231 | On the capacity of wireless networks: The relay case - Gastpar, Vetterli |

160 | User cooperation diversity—part II: implementation aspects and performance analysis
- Sendonaris, Erkip, et al.
- 2003
(Show Context)
Citation Context ...codes [1, 2, 3, 4]. Recently, with the increasing interests in ad hoc networks, researchers have been looking for methods to exploit spatial diversity using antennas of different users in the network =-=[5, 6, 7, 8, 9]-=-. In [8], the authors exploit spatial diversity using the repetition and space-time algorithms. The mutual information and outage probability of the network are analyzed. However, in their model, the ... |

80 | Cayley differential unitary space-time codes
- Hassibi, Hochwald
- 2002
(Show Context)
Citation Context ...nas, since R can be quite large. Finally, it should be interesting to see whether differential space-time coding techniques can be generalized to the distributed setting. We believe that Cayley codes =-=[22]-=- are a suitable candidate for this. A Proof of Theorem 1 Proof: The PEP of mistaking sk by sl has the following Chernoff upper bound [23, 13]: Since sk is transmitted, x = P (sk → sl) ≤ Ee λ(ln P (x|s... |

69 | On the power efficiency of sensory and ad hoc wireless networks
- Dana, Hassibi
- 2006
(Show Context)
Citation Context ...PEP decreases with the SNR or transmit power. The same as before, coding gain is the improvement in the PEP obtained by the code design. The wireless relay network model we use is similar to those in =-=[14, 15]-=-. In [14], the authors show that the capacity of the wireless relay network with R nodes behaves like log R. In [15], a power efficiency that behaves like √ R is obtained. Both results are based on th... |

35 |
VIKALO H.: On the expected complexity of integer least-squares problems
- HASSIBI
- 2002
(Show Context)
Citation Context ...� 2 P 1 +1 S k H� . (6) Since Sk is linear in sk, by splitting the real and imaginary parts, the decoding is equivalent to the decoding of a real linear system. Therefore, sphere decoding can be used =-=[17, 18]-=-. Theorem 1 (Chernoff bound on the PEP). With the ML decoding in (6), the PEP, averaged over the channel coefficients, of mistaking sk by sl has the following Chernoff bound: P (sk → sl) ≤ E fi,gi e −... |

22 |
Modulation Theory-Part I
- Trees, Detection
- 1968
(Show Context)
Citation Context ...lized to the distributed setting. We believe that Cayley codes [22] are a suitable candidate for this. A Proof of Theorem 1 Proof: The PEP of mistaking sk by sl has the following Chernoff upper bound =-=[23, 13]-=-: Since sk is transmitted, x = P (sk → sl) ≤ Ee λ(ln P (x|sl)−lnP(x|sk)) . � P1P2T P1+1 SkH + W . From (6), lnP(x|sl) − lnP(x|sk) � P1P2T P1+1 = − H∗ (Sk − Sl) ∗ � P1P2T (Sk − Sl)H + P1+1 H∗ (Sk − Sl)... |

13 |
Wireless antennas-making wireless communications perform like wireline communications
- Hua, Mei, et al.
- 2003
(Show Context)
Citation Context ...wever, in their model, the relays need to decode their received signals. In [9], a network with a single relay under different protocols is analyzed and second order spatial diversity is achieved. In =-=[10]-=-, the authors use space-time codes based on the Hurwitz-Radon matrices and conjecture a diversity factor around R/2 from their simulations. Also, the simulations in [11] show that the use of Khatri-Ra... |

13 |
Application of space-time linear block codes to parallel wireless relays in mobile ad hoc networks
- Chang, Hua
- 2003
(Show Context)
Citation Context ...tial diversity is achieved. In [10], the authors use space-time codes based on the Hurwitz-Radon matrices and conjecture a diversity factor around R/2 from their simulations. Also, the simulations in =-=[11]-=- show that the use of Khatri-Rao codes lowers the average bit error rate. In this paper, we consider a relay network with fading and apply a LD space-time code [12] among the relays. The problem we ar... |

11 |
Coded transmit macrodiversity: block space-time codes over distributed antennas
- Tang, Valenti
- 2001
(Show Context)
Citation Context |

9 | Is broadcast plus multiaccess optimal for Gaussian wireless networks with fading
- Dana, Sharif, et al.
(Show Context)
Citation Context ...s. This has two main benefits: first, the operations at the relays are considerably simplified, and second, we can avoid imposing bottlenecks on the rate by requiring some relays to decode (See e.g., =-=[16]-=-). Our work shows that in a wireless relay network with R relays, coherence interval T , and a single transmit-and-receive pair, using LD space-time codes among the relays can achieve a diversity of m... |

7 |
Further results on the sphere decoder algorithm
- Damen, Abed-Meraim, et al.
(Show Context)
Citation Context ...� 2 P 1 +1 S k H� . (6) Since Sk is linear in sk, by splitting the real and imaginary parts, the decoding is equivalent to the decoding of a real linear system. Therefore, sphere decoding can be used =-=[17, 18]-=-. Theorem 1 (Chernoff bound on the PEP). With the ML decoding in (6), the PEP, averaged over the channel coefficients, of mistaking sk by sl has the following Chernoff bound: P (sk → sl) ≤ E fi,gi e −... |

2 |
High-rate codes that are linear in space
- Hassibi, Hochwald
- 2006
(Show Context)
Citation Context ...Object Identifier 10.1109/TWC.2006.04505. the use of Khatri-Rao codes lowers the average bit error rate. In this paper, we consider a relay network with fading channels and apply a LD space-time code =-=[12]-=- among the relays. The problem we are interested in is: “Can we increase the reliability of a wireless network by using space-time codes among the relays?” More specifically, the focus of this paper i... |

1 |
et al., “Is broadcast plus multi-access optimal for gaussian wireless network
- Dana
- 2003
(Show Context)
Citation Context ...s. This has two main benefits. First, the operations at the relays are considerably simplified, and second, we can avoid imposing bottlenecks on the rate by requiring some relays to decode (See e.g., =-=[16]-=-). Our work shows that in a wireless relay network with R relays, coherence interval T , and a single transmit-and-receive pair, using distributed LD space-time codes among the relays can achieve a di... |