Sentence examples for downlink code from inspiring English sources

In this contribution, the performance of a downlink code division multiple access (CDMA) system with orthogonal spreading and multicell interference is analyzed.

There is one to one corresponding relationship between the downlink pilot codes and the basic midamble codes group in TD-SCDMA system.

Table 1 MCS table for adaptive modulation and coding Downlink MCS Required CINR (dB) Modulation Coding rate   QPSK QPSK QPSK QPSK 16-QAM 64-QAM 64-QAM 64-QAM.

In IEEE 802.16, the channel condition of a subscriber station (SS) is described in the downlink interval usage code (DIUC) and uplink interval usage code (UIUC) messages.

The main objective of using the SIC based MMSE receiver and the two group resource allocation is to reduce the number of matrix inversions required to run the two resource allocation algorithm for multi code downlink transmission channels.

We propose a joint MAP channel estimation and data detection technique based on the expectation maximization (EM) method with paralel interference cancelation (PIC) for downlink multicarrier (MC) code division multiple access (CDMA) systems in the presence of frequency selective channels.

Considerable research efforts have been devoted to the combined problem of power and rate allocation for the downlink of a code division multiple access (CDMA) system (e.g., [1 3]) aiming at the exploitation of multiuser diversity (i.e., users' time-varying channel conditions) towards optimizing the system's performance, while satisfying various QoS constraints [4 9].

Downlink direct sequence-code division multiple access (DS-CDMA) signals typically exhibit large dynamic range.

The objective is also to jointly optimize the transmission power and the receiver for a single-user multi-code downlink transmission system.

For example, in[5], block diagonalization and zero-forcing dirty-paper coding downlink transmission schemes are extended for a single-cell DAS with multi-antenna-distributed antenna nodes.

A two-stage SIC detection scheme with transmitter power optimization is examined in [16, 17] to improve the throughput performance for multi-code downlink transmission.