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## Coordinated Multi-cell MIMO Systems with Cellular

Citations: | 9 - 2 self |

### Citations

7179 | Convex Optimization
- Boyd, Vandenberghe
- 2004
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Citation Context ...plied. The objective function, however, is concave and the constraint functions are linear, so this is a convex optimization problem and can be solved numerically, e.g. with the interior-point method =-=[16]-=-. 2) User Scaling (US): One sub-optimal power allocation scheme is user scaling, for which we weight the precoding matrix for each user, by choosing ˜ Q (c) US = blockdiag(µ1IL1 , µ2IL2 , · · · , µKIl... |

360 | Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels
- Spencer, Swindlehurst, et al.
- 2004
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Citation Context ...TPC, whose sum rate is given by RT P C = max Tr(T (c) T (c)∗ )≤BPmax 1 B log 2 | I + Λ (c) ˜ Q (c) T P C Λ(c)∗ | (14) The optimal power loading matrix ˜ Q (c) T P C = Σ(c) is derived by water-filling =-=[11]-=-. To meet PBPC, we scale this matrix and choose ˜ Q (c) SW F = µ ˜ Q (c) T P C . The scaling factor µ ∈ (0, 1) is given by P µ = maxb=1,2,··· ,B Tr( ¯ T (c) b ˜ Q (c) Therefore, the sum rate per cell ... |

135 |
A transmit preprocessing technique for multiuser MIMO systems using a decomposition approach
- Choi, Murch
- 2004
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Citation Context ... beamforming in [8] and for various coordination strategies with grouped cell interior and edge users in [9]. Block diagonalization (BD) is a practical precoding technique for broadcast MIMO channels =-=[10]-=-–[13], which can provide each user an interference-free channel and preserve a simple structure of conventional single-user detector. In this paper, we propose a coordinated transmission strategy, com... |

135 | Sum power iterative water-filling for multi-antenna Gaussian broadcast channels
- Jindal, Jafar, et al.
(Show Context)
Citation Context ...ti-cell DPC with TPC: This is an upper bound for the downlink channel of multi-cell systems. We assume a total power constraint, and DPC is applied across BTSs within the same cluster. Algorithm 2 in =-=[17]-=- is used for power allocation. • Multi-cell BD with TPC: This is similar to the single-cell BD, and the water-filling algorithm can be applied to the aggregated channel for power allocation. This serv... |

125 |
Enhancing the cellular downlink capacity via co-processing at the transmitting end
- Shamai, Zaidel
- 2001
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Citation Context ... in a multi-cell environment [1]–[3]. Recently, the base transceiver station (BTS) coordination has been proposed as an effective technique to mitigate interference in downlink of multi-cell networks =-=[4]-=-–[7]. By sharing information across BTSs and designing downlink signals cooperatively, signals from other cells may be used to assist the transmission instead of acting as interference. In [4], BTS co... |

93 |
Cochannel interference mitigation and cooperative processing in downlink multicell multiuser MIMO networks
- Zhang, Dai
- 2004
(Show Context)
Citation Context ...], BTS coordination with dirty paper coding (DPC) was first proposed with single-antenna transmitters and receivers in each cell. BTS coordination in a downlink multi-cell MIMO network was studied in =-=[6]-=-, with a per-BTS power constraint and various joint transmission schemes. The maximum achievable common rate in a coordinated network, with zero-forcing (ZF) and DPC, was studied in [7]. With simplifi... |

66 | Simulation results for an interference-limited multiple-input multiple-output cellular system
- Catreux, Driessen, et al.
- 2000
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Citation Context ...rference to other cells, and the entire network is essentially interference-limited. It has been shown that the capacity gains promised by MIMO techniques degrade severely in a multi-cell environment =-=[1]-=-–[3]. Recently, the base transceiver station (BTS) coordination has been proposed as an effective technique to mitigate interference in downlink of multi-cell networks [4]–[7]. By sharing information ... |

66 | Low complexity user selection algorithms for multiuser MIMO systems with block diagonalization
- Shen, Chen, et al.
- 2006
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Citation Context ...multiple users at each time slot with BD. A. Sum rates for different systems Fig. 2 compares sum rates for different systems, where we apply the capacity-based sub-optimal user selection algorithm in =-=[19]-=-. We can see that the systems with multi-cell BD provide much higher rates than the TDMA system with intercell scheduling. The performance of BD systems with PBPC is near that with TPC, both of which ... |

64 | Multicell downlink capacity with coordinated processing
- Jing, Tse, et al.
- 2008
(Show Context)
Citation Context ...udied in [7]. With simplified network models, analytical results were derived for multi-cell ZF beamforming in [8] and for various coordination strategies with grouped cell interior and edge users in =-=[9]-=-. Block diagonalization (BD) is a practical precoding technique for broadcast MIMO channels [10]–[13], which can provide each user an interference-free channel and preserve a simple structure of conve... |

60 | Downlink Capacity of Interference-limited MIMO Systems with Joint Detection - Dai, Molisch, et al. - 2004 |

55 | Generalized multiuser orthogonal space-division multiplexing - Pan, Wong, et al. - 2004 |

50 | Overcoming Interference in Spatial Multiplexing MIMO Cellular Networks
- Andrews, Choi, et al.
- 2007
(Show Context)
Citation Context ...ence to other cells, and the entire network is essentially interference-limited. It has been shown that the capacity gains promised by MIMO techniques degrade severely in a multi-cell environment [1]–=-=[3]-=-. Recently, the base transceiver station (BTS) coordination has been proposed as an effective technique to mitigate interference in downlink of multi-cell networks [4]–[7]. By sharing information acro... |

44 | Multi-cell communications: An information theoretic perspective - Shamai, Somekh, et al. - 2004 |

41 |
On the maximum common rate achievable in a coordinated network
- Karakayali, Foschini, et al.
- 2006
(Show Context)
Citation Context ...a multi-cell environment [1]–[3]. Recently, the base transceiver station (BTS) coordination has been proposed as an effective technique to mitigate interference in downlink of multi-cell networks [4]–=-=[7]-=-. By sharing information across BTSs and designing downlink signals cooperatively, signals from other cells may be used to assist the transmission instead of acting as interference. In [4], BTS coordi... |

37 |
The capacity gain from intercell scheduling in multi-antenna systems
- Choi, Andrews
- 2008
(Show Context)
Citation Context ...on. This serves as an upper bound for the multi-cell BD with PBPC. ) • BTS scaling power allocation: This is a sub-optimal power allocation with PBPC proposed in [6]. • TDMA with Intercell Scheduling =-=[18]-=-: Neighboring BTS’s cooperatively schedule their transmission, and only one BTS is active to serve one user at each time slot. • Intercell Scheduling with BD: Compared to TDMA with intercell schedulin... |

34 | Distributed multi-cell zero-forcing beamforming in cellular downlink channels
- Somekh, Simeone, et al.
- 2006
(Show Context)
Citation Context ...m achievable common rate in a coordinated network, with zero-forcing (ZF) and DPC, was studied in [7]. With simplified network models, analytical results were derived for multi-cell ZF beamforming in =-=[8]-=- and for various coordination strategies with grouped cell interior and edge users in [9]. Block diagonalization (BD) is a practical precoding technique for broadcast MIMO channels [10]–[13], which ca... |

21 |
Block Diagonalization for Multi-User MIMO with Other-Cell Interference
- Shim, Kwak, et al.
- 2008
(Show Context)
Citation Context ...eparated into two parts: the precoding matrix design and the power allocation scheme design. The design of the precoding matrix will consider other-cell interference and follow the scheme proposed in =-=[14]-=-, which is shown to provide better sum rate performance than the conventional BD; For the power allocation, three different kinds of schemes will be proposed assuming a per-BTS power constraint (PBPC)... |

7 |
Capacity of mulit-antenna Gaussian channels
- Telatar
- 1999
(Show Context)
Citation Context ...which we propose one optimal and two sub-optimal schemes: user scaling and scaled water-filling. 1) Optimal Power Allocation: The optimal power allocation matrix to maximize (10) is a diagonal matrix =-=[15]-=-, denoted as ˜ Q (c) OP T = diag(γ1,1, γ1,2, · · · , γ1,l1 , γ2,1, · · · , γK,lK ). The corresponding achievable sum rate is given as RCBD = max Tr( ¯ T (c) b Q(c) ¯ T (c)∗ b )≤P 1 B K� lk� k=1 l=1 lo... |

4 | Transmit selection diversity for multiuser spatial multiplexing systems
- Chen, Andrews, et al.
- 2004
(Show Context)
Citation Context ...forming in [8] and for various coordination strategies with grouped cell interior and edge users in [9]. Block diagonalization (BD) is a practical precoding technique for broadcast MIMO channels [10]–=-=[13]-=-, which can provide each user an interference-free channel and preserve a simple structure of conventional single-user detector. In this paper, we propose a coordinated transmission strategy, combinin... |