Title :
Three-dimensional carrierless AM/PM line code for the unshielded twisted pair cables
Author :
Shalash, Ahmed ; Parhi, Keshab
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
The Carrierless AM/PM (CAP) modulation scheme is a viable alternative for high speed digital transmission for the HDSL/ADSL/VHDSL environments. In this paper, the conventional 2-D CAP system is expanded to a 3-D space. A 50% increase in the system throughput is achieved at the expense of added receiver complexity and some performance degradation. The 3-D signaling is obtained through a minimax optimization process to match the characteristics of the original 2-D system and to achieve perfect reconstruction (PR) condition. The 3-D CAP system is simulated over unshielded twisted pair (UTP) cable environment for baud rate of 150 Mbps
Keywords :
amplitude modulation; digital communication; minimax techniques; phase modulation; subscriber loops; transceivers; twisted pair cables; 150 Mbit/s; HDSL/ADSL/VHDSL environments; baud rate; digital subscriber loops; high speed digital transmission; minimax optimization process; perfect reconstruction condition; performance degradation; receiver complexity; system throughput; three-dimensional carrierless AM/PM line code; unshielded twisted pair cables; Bandwidth; Bit error rate; Cables; DSL; Degradation; Encoding; Information retrieval; Minimax techniques; OFDM modulation; Throughput;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.621592
