Title :
Low-complexity noncoherent PN code chip timing recovery with resistance to MAI for a bandlimited CDMA receiver
Author_Institution :
Dept. of Electr. Eng., Nat. Chi Nan Univ., Nantou, Taiwan
Abstract :
A noncoherent PN code tracking loop in a fully digital modem is investigated for bandlimited direct-sequence spread-spectrum communications. Its main features are low hardware complexity and good tracking performance. Analytical expressions of the error characteristics and steady-state timing jitter are derived and confirmed by means of computer simulation. The numerical results show that it achieves good steady-state performance. In addition, the proposed technique provides good resistance to multiple-access interference while operating in a code-division multiple-access environment.
Keywords :
code division multiple access; multiuser channels; pseudonoise codes; radio receivers; radio tracking; radiofrequency interference; spread spectrum communication; synchronisation; timing jitter; DS/SS; MAI; bandlimited CDMA receiver; bandlimited communications; code-division multiple-access; computer simulation; direct-sequence spread-spectrum communications; error characteristics; low hardware complexity; low-complexity timing recovery; multiple-access interference resistance; noncoherent PN code chip timing recovery; steady-state performance; steady-state timing jitter; tracking performance; Computer errors; Computer simulation; Hardware; Modems; Multiaccess communication; Multiple access interference; Spread spectrum communication; Steady-state; Timing jitter; Tracking loops;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2003.816628
