TY  - JOUR
T1  - Transmitter-based inverse filters for reducing MAI and ISI in CDMA-TDD downlink.
JF  - IEEE Transactions on wireless communications
A1  - Georgoulis, S.L
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609638307
AB  - Inverse filters (INVF) are introduced as a new transmitter-based precoding scheme for the code-division multiple access-time division duplex (TDD) downlink. Multiple access interference and intersymbol interference are significantly reduced while the mobile station's structure is reduced to a filter matched to the user's spreading code. The method assumes knowledge of the channel at the transmitter which is feasible under TDD. The new algorithm uses a minimum mean-squared error criterion with power constraint. When compared with existing schemes, INVF increase the system performance while maintaining a low computational cost. The theoretical analysis is supported with simulation results. Analytical bit-error rates for any precoding algorithm is also calculated.
KW  - CDMA-TDD downlink.
KW  - Bit error rates.
KW  - Code division multiple access.
KW  - Intersymbol interference.
KW  - Inverse filters.
KW  - Minimum-squared error criterion.
KW  - Multiple access interference.
KW  - Multiuser detection.
KW  - Power constraints.
KW  - Spreading code.
KW  - Time division duplex.
KW  - Transmitter-based precoding scheme.
ER  -