Patent ID: 8064333

Claim:
A method of packet transmission in a wireless adaptive hybrid automatic repeat request transmission system with incremental redundancy comprising: determining an assignment rate and modulation set {(λ l ,M l ) l=1, . . . , L} for a packet based at least in part on a maximal number of L transmission attempts and a long term signal to noise ration of the wireless transmission system which maximize the average throughput of the hybrid automatic repeat request transmission system given by η TC = ( 1 - p ⁡ ( L ) ) ⁢ r 0 λ 1 2 ⁢ ⁢ m 1 ⁢ ( 1 + ∑ l = 1 L - 1 ⁢ λ l + 1 2 ⁢ ⁢ m l + 1 ⁢ p ⁡ ( l ) ) , where λ l , ∑ l = 1 L ⁢ λ l ≤ 1 , and M l denote the assignment rate and the M l -QAM modulation for the lth transmission block in a hybrid ARQ transmission of a packet, respectively, 2m l is the number of bits in the M 1 -QAM modulation where m l = log 2 ⁢ M l 2 , l=1, . . . , L and p(l), denotes the packet error probability after l transmissions; and transmitting information related to the packet based at least in part on the determined assignment rate and a determined quadrature amplitude modulation (λ l ,M l ), l=1 , . . . , L for the lth transmission of a maximal number of L transmission attempts for a packet in a hybrid ARQ transmission process.