### Abstract

Original language | English |
---|---|

Place of Publication | Enschede |

Publisher | University of Twente, Department of Applied Mathematics |

Number of pages | 15 |

Publication status | Published - 2004 |

### Publication series

Name | Memorandum Faculty of Mathematical Sciences |
---|---|

Publisher | University of Twente, Department of Applied Mathematics |

No. | 1728 |

ISSN (Print) | 0169-2690 |

### Fingerprint

### Keywords

- MSC-90B22
- MSC-90B18
- METIS-218213
- MSC-60K25
- IR-65912
- EWI-3548

### Cite this

*A multiple-choice knapsack based algorithm for CDMA downlink rate differentiation under uplink coverage restrictions*. (Memorandum Faculty of Mathematical Sciences; No. 1728). Enschede: University of Twente, Department of Applied Mathematics.

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*A multiple-choice knapsack based algorithm for CDMA downlink rate differentiation under uplink coverage restrictions*. Memorandum Faculty of Mathematical Sciences, no. 1728, University of Twente, Department of Applied Mathematics, Enschede.

**A multiple-choice knapsack based algorithm for CDMA downlink rate differentiation under uplink coverage restrictions.** / Endrayanto, A.I.; Bumb, A.F.; Boucherie, Richardus J.

Research output: Book/Report › Report › Professional

TY - BOOK

T1 - A multiple-choice knapsack based algorithm for CDMA downlink rate differentiation under uplink coverage restrictions

AU - Endrayanto, A.I.

AU - Bumb, A.F.

AU - Boucherie, Richardus J.

N1 - Imported from MEMORANDA

PY - 2004

Y1 - 2004

N2 - This paper presents an analytical model for downlink rate allocation in Code Division Multiple Access (CDMA) mobile networks. By discretizing the coverage area into small segments, the transmit power requirements are characterized via a matrix representation that separates user and system characteristics. We obtain a closed-form analytical expression for the so-called Perron-Frobenius eigenvalue of that matrix, which provides a quick assessment of the feasibility of the power assignment for a given downlink rate allocation. Based on the Perron-Frobenius eigenvalue, we reduce the downlink rate allocation problem to a set of multiple-choice knapsack problems. The solution of these problems provides an approximation of the optimal downlink rate allocation and cell borders for which the system throughput, expressed in terms of downlink rates, is maximized.

AB - This paper presents an analytical model for downlink rate allocation in Code Division Multiple Access (CDMA) mobile networks. By discretizing the coverage area into small segments, the transmit power requirements are characterized via a matrix representation that separates user and system characteristics. We obtain a closed-form analytical expression for the so-called Perron-Frobenius eigenvalue of that matrix, which provides a quick assessment of the feasibility of the power assignment for a given downlink rate allocation. Based on the Perron-Frobenius eigenvalue, we reduce the downlink rate allocation problem to a set of multiple-choice knapsack problems. The solution of these problems provides an approximation of the optimal downlink rate allocation and cell borders for which the system throughput, expressed in terms of downlink rates, is maximized.

KW - MSC-90B22

KW - MSC-90B18

KW - METIS-218213

KW - MSC-60K25

KW - IR-65912

KW - EWI-3548

M3 - Report

T3 - Memorandum Faculty of Mathematical Sciences

BT - A multiple-choice knapsack based algorithm for CDMA downlink rate differentiation under uplink coverage restrictions

PB - University of Twente, Department of Applied Mathematics

CY - Enschede

ER -