The paper investigates an odd particle composite quantum state combined with W-state and Bell-state.It is shown that this composite quantum state can be used to prefect teleportation of arbitrary single and two qubit,and also can be commendably utilized for superdense coding and quantum state sharing.The paper presents the measurement basis of sender and unity operations of receiver for teleportation protocol.It is found that five classical bits can be sent by conveying only three quantum bits for superdense coding.
Quantum teleportation and Bell measurements are considered in a noisy relay setting. We introduce two quantum relay-channel models with closed-form capacity formulas, motivated by the canonical quantum communication protocols of teleportation and superdense coding. In both models, the sender transmits a qubit, while the relay observes side information about the Pauli errors that occur in the channel and communicates with the receiver through an orthogonal rate-limited link. We develop a compress-forward coding scheme in which the relay compresses the Pauli-error sequence into bins and sends the bin index to the receiver. The receiver uses this partial error information to reduce the effective channel noise before quantum decoding. We show that this strategy is optimal by establishing matching converse bounds for both models.